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• i7 x980 at 70% speed

  - by Buxley

  Hi we bought a nice computer to use to solve optimization problems. intel i7 X980@3,33 Mhz with 12 Gb of Team Group 1600 MHz ddr3 Ram. When we use Gurobi The Computer uses all 12 cores at maximum in the beginning of the solve. However after a while (about 8 hrs) it all cores jump between 65 and 85% When I solve the same models on an I7 930 all cores are at a near 100% level even after longer solution times. we first thought that the Harddisk was the bottleneck since Gurobi writes out nodefiles after the memorylimit is used. However since the new computer have 12 GB of Ram we put the memorylimit to 7 GB so the solver only used the RAM and still with the same performance in the processor. Any Ideas about the bottleneck? As I said earlier it works at 100% for the first hours or so . Thanks very much for any answers! Our plan was to overclock it but we can't even get it to work at normal speed yet!

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• Which program is locking all my executable files?

  - by Tom Wijsman

  When updating any software product, as well as manually trying to replace .exe files, it says that access is denied to the file and in fact the System process is holding a handle to the file when I check it with Process Explorer. This must be a driver or something that is malfunctioning was my first though, but now I wonder how I figure out which driver / program is doing this and why it is so. Unlocker doesn't seem to be working for me, unless someone can tell me how to use it properly other than making it appear a magical wand in the notification area.... This is what Unlocker puts in my event log: The description for Event ID 1060 from source Application Popup cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. If the event originated on another computer, the display information had to be saved with the event. The following information was included with the event: \??\C:\Program Files (x86)\Unlocker\UnlockerDriver5.sys the message resource is present but the message is not found in the string/message table Upon searching event 1060 I get: <file name> has been blocked from loading due to incompatibility with this system. Perhaps it is because I have 64 bit?

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• How can I automatically edit an email before auto-forwarding it?

  - by Miss Cellanie

  Is there a way to automatically edit emails before forwarding them? I'm getting email notifications from Foursquare that I want to send to my phone as text messages. I know how to send messages to my number using an email address (I'm in the US and use Verizon) but I don't know how to strip out any unnecessary formatting, like HTML, before the email gets sent. What I want: Ability to strip out HTML Ability to start forwarding at a specific part of the email based on a search (e.g., I might know that Foursquare starts their messages with "Hey hey!" and only want content after that phrase occurs) Ability to truncate at 160 characters Things I've tried: I'm not using Foursquare DM pings through Twitter because I have two Twitter accounts and Twitter only allows a phone to be linked to one account at a time. I'm not willing to change which account it's linked to. I tried to work around the Twitter limitation using Google Voice, but they don't support SMS short codes. I'll compromise on the features I want if I can find a free solution that doesn't require me to set up my own server. I do think this is computer related because it will happen on my computer, not on my phone. edit My current setup: Gmail in Firefox 3.0.15 on Windows XP. I use a netbook as my only personal computer. However, if the only way to accomplish this well is to set up my own mail server or something, I would still want to know that.

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• Windows 7 Taskbar resets on every login

  - by Arne Mertz

  I like to reorder my Taskbar a bit, other than the Windows 7 default is. I use two "rows", the lower is for quicklaunch and other toolbars: This works perfectly, as long as I don't log off from the computer. Every time I log in, Windows 7 has messed up/reset the toolbar positions like this: So I have to drag them into position again and again, every morning. Fixing the taskbar positions won't help, I tried to google for the problem but it does not seem to be very common. Does anyone recognize that problem and has a solution? Update: This is not the AutoLogon bug. AutoLogon is off. We have installed Novell at our company, and it does not matter wether I log directly onto the Novell network or only to the computer first and to Novell later. Update2: I get the same issue when I logon without Novell, i.e. when I log on only to the computer. When I boot in safe mode, the taskbar looks essentially the same: Update3: KB979155 says it's "not applicable to my system". Creating a neew user is not an option since I don't have the admin privileges to do that - I have almost any other local admin privileges, though.

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• How to set up Windows 7 Professional as a NAS

  - by Enyalius

  I searched and didn't find any answers, so please forgive me if this is a repeat. Anyway, I have an older computer that I'm using as an HTPC, and I was hoping that I could use it as a NAS/multimedia server, as well. My primary uses would include accessing content on my PS3 (same LAN), accessing content from other computers on my home network and (if I can) accessing content from my Android phone over the internet. I have used SubSonic to stream music to my Android phone and other computers before, but I would really like to find a way to do this natively if possible. I know that I can buy external hard disk cases that can plug in the USB port of my router, that I can get a Drobo or other network storage solution, but I would really just rather not spend the money (especially considering that I already have a computer that I should be able to use). Hardware involved: Apple AirPort Extreme base station router (most recent revision) Home Theater Personal Computer: Core 2 Duo @ 2.4GHz, 8GB DDR2 RAM, ~3.5TB hard drive space Sony Playstaiton 3 Thin 120GB HTC Thunderbolt (I have 4G coverage) rooted and running Android 2.2.1 Various Apple laptops Various Windows 7 desktops/laptops Thanks in advance! Note- I have looked at open source NAS software but I would like to preserve the Windows Media Center functionality in Windows 7, so other NAS software is not an option for me currently. .

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• Diagnosing RAM issues

  - by TaylorND

  I have an old Acer Aspire T180 desktop. The specs are as follows: AMD Athlon 64 3800+ 2.4GHz 1GB DDR2 SDRAM 160GB DVD-Writer (DVD±R/±RW) Gigabit Ethernet 17" Active Matrix TFT Color LCD Windows Vista Home Basic Mini-tower AST180-UA381B According to the information in the computer's documentation the computer comes with 1 GB of RAM. It has two DDR2 SDRAM sticks. I used to have Windows Vista installed. Then I removed it and install Windows 7, and now I have since removed Windows 7 and installed Windows XP. According to Windows XP with both RAM sticks in the computer has 768 MB. Isn't this supposed to be 1 GB of RAM or 1024 MB of RAM? Is the amount of RAM installed only partly used by the Operating System? Is there's something I'm missing? If I remove either one of the RAM sticks I'm left with 448 MB of RAM. These numbers don't seem to add up. If each of the RAM sticks contains at least 448 MB of RAM shouldn't they (both being in) provide 896 MB of RAM. Even then, isn't that less than a GB of RAM? I'm not too experienced in hardware so I thought this would be the best place to ask. As a follow up question, is the RAM I have enough to run/multitask with Windows XP efficiently? I plan to do a lot of computing with the system (although not gaming), should I invest in more RAM?

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• wireless to wired internet

  - by Mark T

  My wife uses an old computer which doesn't really like having an internet connection via a USB wireless adapter. I've tried several, and none have been satisfactory. The connection gets dropped often and it is frustrating for her. A wireless card also had the same trouble. Repositioning the computer made no difference. (Two laptops, nearby, connect just fine and stay up, so it isn't the router.) However, the computer always worked well when I had an Ethernet cable connected to it. I know there is a box which will connect to my wireless network and provide an Ethernet cable connection. But the terminology used is so complex, I can't tell what it is I really need. In case that wasn't clear, here it is in different words: What I need is just the opposite of a wireless router. My wireless router takes my cable modem's Ethernet connection and makes it available to wireless clients. What I want is a box which is a wireless client to my wireless router and provides an Ethernet cable connection that I can connect to any device. I need to know the right name for a box with such capabilities. If you know of some inexpensive examples, that would also be helpful. I'm running a wireless G network with a Linksys Router.

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• Application that will identify percentage of your system disk bandwidth used on a user-application by user-application basis?

  - by Warren P

  I always (subjectively) feel my computer is far too slow (however fast it is), and so I'm always looking for ways to measure and understand what my computer is actually doing, that is making it seem "slow" to me. It has been my observation that my software-developer workload is most often disk-bound (I am waiting for Disk I/O) more than CPU bound. What has made it worse, is that I am using a corporate PC that has in-memory active-scanning anti-virus software that I do not have control over, and also some IT department mandated services that seem to suck up a lot of available hard-disk bandwidth. The best tool I have seen (in Windows 7) is the Resource Monitor which I usually acess from the button in the task Manager. The disk IO page, however, seems to label Disk Activity at a very low level (for example, showing the Volume Shadow Storage, which is flushing information obviously written by something ELSE other than VSS itself, and then writes to Pagefile.sys, which are obviously due to Virtual Memory faults in some application). What I would like to know is if a utility exists that can add up all direct disk input and output by user-level process, or find the process or service that caused VM or VSS activity. In that way, I hope, you could establish a real idea of how much of your computer's precious disk subsystem bandwidth is attributable to a particular application. here's a scenario: MyApp.exe writes 100k/s and reads 100k/s directly. VSS ends up writing another 100k/s. pagefaults caused inside MyApp.exe cause another 100k/s of writes. So the total "cost" of MyApp.exe running, during a period of time (let's say 1 second) is 400k/s, whereas you can only directly observe half of that, in Resource Monitor. Is there a smarter disk-IO watching piece of software I can use?

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• How to perform this Windows 7 permissions change on many files via GUI or command line

  - by hippietrail

  After using my external hard drive on another Windows 7 computer to tweak photos with Windows Live Photo Gallery then upload them to Facebook I found the modified images were now not visible on the original Windows 7 computer. I'm not sure if the things I tried to get it working subsequently changed anything, but I do know this is the sequence of actions that makes the permissions of the modified files match those of the unmodified files: Right click on broken image file, select "Properties" On the "Security" tab press the "Advanced" button In the "Permissions" tab press the "Continue" button with the shield icon on it Tick the box marked "Include inheritable permissions from this object's parent Click the "Remove" button to remove the only current entry "Type: Allow, Name: Administrators (XYZ\Administrators), Permission: Full control, Inherited From: OK on the "Permissions" tab. OK on the "Security" tab. Now this same procedure does not work at the folder level. It results in "access denied" dialogs. I'm looking for some way to perform this exact modification on all the images I edited on the other computer. I'm happy to use the Windows GUI in Explorer or any other included tools. I'm happy to use the Windows command line. I'd prefer not to use a third-party tool since I'd have to be satisfied it's not doing anything else. I'm not looking for a different way to change permissions to other settings to make an external drive full of photos editable on multiple computers. At least not in this question.

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• Hibernate & Sleep broken after IE 9 RTM installation in Windows 7 x64.

  - by AKa

  I have a question about hibernation. I installed Internet Explorer 9 RTM x64 on my Windows 7 x64 SP1 desktop machine. After this, computer don't entry the hibernation or (hybrid) sleep state properly. After I hibernate the computer the monitor become blank screen and the keyboard and mouse are inactive. But the machine is still running and there isn't any possibility to switch them off as only with power button. But this is recognized on next start as ineligible because of log entry with message “The previous system shutdown at xx:xx:xx on ?xx.?xx.?x was unexpected“ and menu with safe mode option. I’m clearly not sure if it has something to do with Internet Explorer installation, but I’m definitely guaranteed that before of this I never had some problems with hibernation or (hybrid) sleep. In Windows logs isn’t something suspect. I switched the hibernation off and on, installed new drivers for mainboard, graphic and network card, checked the hard disk, nothing was helpful. This is really sad, beacuse I don't like to switch the computer completely off because it takes longer to boot. Any suggestions?

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• Lenovo System Update Breaks Windows Live

  - by wolfvilleian

  Hey everyone, I've been racking my brain (and fingers from typing) trying to solve this issue to no avail. I have a Lenovo computer and I install their system update tool to install all my missing drivers. However after this tool is installed Windows Live 2011 breaks, it will no longer sign in giving error number 8e5e0247 all the solutions online haven't helped. It appears that a language setting somewhere gets set to en_ms, and I'm en_ca. My computer is running Windows 7 x64. When i try to sign onto messenger it gives an error that (with some research) means your locale or language is not supported, I've searched my computer for any reference to en_ms but find none. Also a few other things seem to have broken, When a UAC box comes up it is no longer able to identify the publisher of anything, and also the indexing service does not work (I'm not sure if the indexing issue is related, but the UAC issue happened right after installation), I had this issue before but I don't remember how I fixed it, I believe it had something to do with environmental variables. When it goes to sign in it gets as far as the "Loading contacts" then stops and goes back to the sign in screen. Has anyone seen this before? Thanks

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• Windows takes a very long time to shut down even in safe mode

  - by user1526247

  On Windows 7 the computer freezes for about 5 minutes once it gets to "Shutting down...". I can't remember when it started happening. I just lived with it for a while. The first thing I tried was a full scan using Microsoft Security Essentials. This did not solve the problem. I then went into msconfig and turned off everything I could get away with in the startup and services tabs. This did not solve the problem. I then uninstalled every program on this computer save the most basic programs. This did not solve the problem (did not uninstall drivers or catalyst). I then went through and turned off every single service and did a reboot. This did not solve the problem. I then booted into safe mode and just tried shutting it down. The problem even happens in safe mode. I have tried examining the event logs but with no success. They just say things like "blah blah has entered the stopped state" with no real clues about what program is causing me all this grief. *it may be worth noting that Ubuntu is installed on the same computer and the ubuntu boot loader is the one being used.

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• HDD dead forever???

  - by Roberto

  Yesterday I turned on my computer and it couldn't boot. I found out the hd (320GB SATA Seagate Momentus 7200.3 for notebook) was broken, it couldn't be recognized by the BIOS. I have another of the same hd, so I exchanged the boards. I found out that there is a problem on its board since my good hd didn't work. But the broken hd doesn't work with the good board as well: it can be recognized but when I insert a Windows Instalation DVD it says the hd is 0GB. I put it in a case and use it in another computer via USB, and but it doesn't show up in the "My Computer". I used a software to recover files called "GetDataBack for NTFS", it recognized the hd but with the wrong size (2TB). I try to make it read the hd but it get an I/O error reading sector. It tries to read, the hd spins... So, since I'm using a good board on it, the problem seems to be internal. Is there anything someone could do recover the files from it?

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• Windows - Decrypt encrypted file when user account is destroyed

  - by dc2

  I have a Virtual Machine running on my Windows Server 2008 computer that originally was received by me encryped, as the builder of the VM did it on a MAC, which decrypts files by default. I never thought to decrypt these files, as they automatically 'decrypt' when you have permission over them, so the VM has been running for over a year despite the encryption. I just upgraded my computer to Domain Controller (dcpromo.exe). Now when I try to access/run the VM, I can't because I don't have permission to decrypt the files as that was on another logon (local administrator) and now I am the domain administrator. Apparently the local admin is totally nuked when you upgrade to domain controller. I have tried EVERYTHING - taking ownership of the files, which works. Doesn't do anything for me. Adding full control to everyone on the files. I go to File Properties Advanced Details (under encryption) Users who can access this file. The only user is administrator@localcomputername, and there is a cert number. I try adding a new cert, I don't have permission. I don't have permission to: Decrypt the file (access is denied). Copy the file (to another computer) - access denied. I am totally stumped and this VM is a production machine and needs to get up right now. Does anyone have any ideas?

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• System Issues and Major Malfuctions after Failed hibernation Exit

  - by Sarah Seguin

  I have a HP G71-340US that went into hibernation mode for a while and when I tried coming out of it, I got an error message: You're computer cannot come out if hibernation . Status: 0xc000009a Info: A fatal error occurred processing the restoration data. File: \hiberfil.sys Any information that was not saved before the computer went into hybernation will be lost enter=continue So I hit continue and it ran soooo super slow it. It was seriously crawling. Finally I gave up and turned it off manually (IE press and hold the button). It's been a week or two since then and EVERY SINGLE TIME I have tried to to do ANYTHING it takes forever. When I say forever, I literally mean takes 5-7 minutes to load the internet, then the page itself, then to click a link, so on so forth. Eventually everything just goes not responding and I have to give up (4-6 HOURS later). I also cannot access my thumb/jump drives once I've managed to load windows. I was going to try runing malware bytes incase of a virus, but it's windows explorer developes errors and goes not responding on me. Currently I'm running scan disk or check disk and like every file is coming back unreadable. I let it run the last 2 hours straight in chkdesk and I'm only at 6 percent with around 500+ errors and still going. Yes, I've taken logs of the errors via cell phone camera and patience. A week or two prior to this happening I had to change our the hard drive due to blunt force trama next to the mouse. OH! Running on Windows 7: ) And I've tried loading the computer in safe mode and it makes absolutely no difference. Any and all help would be appreciated. I really don't know what to do from here and I'm kind of freaking out. I've googled different part of the error and things that I've done/seen and there are so many different answers/topics that I thought it best to just post the questions.

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• Windows 8 not shutting down properly

  - by Patrick

  Since installing Windows 8, the computer hasn't been shutting down properly. When selecting to power down, the PC quickly displays the shutting down screen, the monitor powers off, and the computer remains on but unresponsive. After about 5 minutes, the computer will turn off. Upon booting into windows again, I am informed that Windows didn't properly shut down. I'm running a fast SSD, and it's a clean install of Windows 8, so there's no way Windows is taking that time to do some sort of hibernate on shutdown or whatever - not to mention the error when entering Windows the next time. This happens on every shut down. Restart works as expected. EDIT: Formatting again didn't work. Fails regardless of drivers installed. Event viewer Always these two messages in close succession: Error (event ID 6008): The previous system shutdown at 7:45:21 PM on ?27/?10/?2012 was unexpected. Critical (kernel power, event ID 41): The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

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• How to diagnose a spontaneous reboot?

  - by Spectralist

  My computer reboots, seemingly completely at random, about once every week to two weeks but has occasionally gone months. It just goes from running fine to the POST with no error messages or anything and doesn't seem to be due to heat or usage as it's happened a couple of times when the computer has booted just a few moments ago and is idling. It's been happening for as long as I've had this computer, almost two years. It's happened in both Vista and Windows7. I strongly suspect it's a hardware problem. But due to the rareish and random nature of the crashes my normal strategy of just removing hardware until the problem stops isn't really practical. My guess would be Power Supply, Ram, or Motherboard. But I just don't know how to test an issue this random and want to figure out how to confirm which it is before I go replacing things. So is there some software or hardware that can be used to test these sorts of errors? I did run memtest86 for about 8 hours without finding any issues. And the power supply is more than capable of running my system.

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• Windows 8 Killed my SSDs

  - by SLaks

  I have a computer running 2 256GB Crucial M4's (CT256M4SSD2) in a RAID 0 (striped) array on an ASUS P9X79 Pro using Intel's (built-in) RAID system. I recently installed Windows 8 Pro as UEFI on this RAID array. (wiping a fully-function Windows 7 non-UEFI installation) Now, whenever the computer is left running for about an hour, the system no longer sees those drives. Since those drives contain Windows, this leads to various forms of BSODs. If I Intel RSTe (RAID manager) is running at the time, it will say that the disk backing that RAID array has been removed. Once this happens, if I reset the computer, it will no longer boot. Entering BIOS setup shows that the SATA 3 (6Gbps) ports that those disks are connected to are both empty. If I then power down the system completely, then turn it on again, the drives reappear, but the problem repeats after another hour or so. I have inconclusively determined that the problem occurs even if Windows is not running (booted into the installation environment from a UEFI flash drive) I don't think there has been any data corruption since this started happening, although I have had two strange issues with a GIT repo on that disk. sfc /ScanNow and Intel's disk check (in RSTe) both do not find anything. Does anyone know what might cause this?

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• I can get in, but I can't get out

  - by robwilkerson

  Like most technical folks, I suppose, I'm my family's primary source of tech support. I'm a developer--not a sysadmin--by trade and tonight I bumped into something I've never seen before. I'm hoping someone here has. In order to better help my Mom, I have her set up on a home network behind a Linksys router (WRT54G). She's got a Mac, so I have her router set up to forward SSH requests to her laptop's internal IP. I also have her router running DDNS through DynDns. Tonight she called to tell me that she can't access the Internet. Assuming it was one of the many simple, stupid problems most of us encounter with parents, I logged into the router admin remotely and took a look around. Everything looked normal. Then I SSH'd into her machine to check out her IP, DNS, etc. settings. Everything still looked fine. Then I noticed something weird. When SSH'd into her machine, I can't ping her router. In other words, I seem to be able to access her computer through her router, but not access her router from her computer. A traceroute dies immediately as well. Any ideas what I might try next? I've bounced her computer and even unplugged her router (it was plugged back in, of course). Thanks.

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• Monitor programs accessing my keyboard?

  - by Anti Earth

  As of a few days ago, my computer is behaving 'erratically'. When I am typing, my pointer will randomly move to another place in the text and start typing a semi-random string of characters. ("gvyfn" is common; It has typed this about 8 times whilst I composed all the text above) It often highlights part of or all the text and overwrites it. It sometimes goes into loops of pressing Control-alt-delete down, bringing up Windows 7 menu thing. It sometimes even messes with mouseclicks; they have unexpected results, like requesting admin priveledges from applications, instead of switching to their window. I believe this is because it is holding a alt-function key down. This behaviour happens periodically, in waves. It might subside for an hour, then continue to haunt me. I believe it to be a virus or malicious program. My anti-virus (Symantec) and multiply MS rootkit removers could not find anything suspicious. I've noticed that sometimes it re-maps keys, and types gibberish when I press certain keys (though no pattern is evident). I believe a malicious program has installed a keyhook on my computer. I'm wondering... - Is there a way to let me view which programs are emulating keystrokes? - Is there a way to view what keyboard hooks are installed? (I'm also at liberty to try any other techniques to remove this blasted thing. It is easily the most fustrating computer problem I've encountered). Thanks!

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• Two Way Sync of folder on PC to USB Thumb Drive over the internet.

  - by Tim Santeford

  Before flagging as duplicate please note that other similar posts do not have the same criteria below. Thanks Im looking for an app that will let me automatically sync a usb drive with a folder on my home system over the internet. I would like to roam from computer to computer and run this syncing app from the usb drive. Im looking for the same functionally as DropBox but without the 2gb restriction and without the need to fully install. Two Way sync between a usb drive and pc over the net Utilizes the full size of the usb drive not limited by an online storage size. (I dont need online backup or versioning) Allows the removal of the usb drive, Plugging it in to another computer will resume its sync. While the drive is connected the app should run silently keeping changed files in sync. (I dont want to run a manual process other than simply starting the app) Must be able to run as a portable app from the usb drive but can fully install on home pc. Window 7 Support is preferable. Please let me know if such and awesome app exists. TIA!

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• Windows user moving to Ubuntu 12.04. Where are the system tools, or equivalents?

  - by Big Endian

  I am a Windows user who has begun experimenting with Ubuntu. Ubuntu seems great, but for all the things it seems like I CAN'T do. How do I get to advanced administration stuff, like the list of drivers, all of the installed software, and something equivalent to Windows' Device Manager. I always heard that Linux was supposed to be very raw, and you had to have lots of computer experience to make it work. This seems just the opposite. Ubuntu seems very modern and user friendly, better in some regards than any operating system I have seen. Unfortunately, I can't find any of the guts of this system beneath all of the user friendly frosting... gunk... crap... stuff. I'm reminded more and more of an Apple computer (except Linux is more affordable :). So how do I peel back this layer and start using the computer? A solution other than installing Gnome 3 would be appreciated.

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• Useful Command-line Commands on Windows

  - by Sung Meister

  The aim for this Wiki is to promote using a command to open up commonly used applications without having to go through many mouse clicks - thus saving time on monitoring and troubleshooting Windows machines. Answer entries need to specify Application name Commands Screenshot (Optional) Shortcut to commands && - Command Chaining %SYSTEMROOT%\System32\rcimlby.exe -LaunchRA - Remote Assistance (Windows XP) appwiz.cpl - Programs and Features (Formerly Known as "Add or Remove Programs") appwiz.cpl @,2 - Turn Windows Features On and Off (Add/Remove Windows Components pane) arp - Displays and modifies the IP-to-Physical address translation tables used by address resolution protocol (ARP) at - Schedule tasks either locally or remotely without using Scheduled Tasks bootsect.exe - Updates the master boot code for hard disk partitions to switch between BOOTMGR and NTLDR cacls - Change Access Control List (ACL) permissions on a directory, its subcontents, or files calc - Calculator chkdsk - Check/Fix the disk surface for physical errors or bad sectors cipher - Displays or alters the encryption of directories [files] on NTFS partitions cleanmgr.exe - Disk Cleanup clip - Redirects output of command line tools to the Windows clipboard cls - clear the command line screen cmd /k - Run command with command extensions enabled color - Sets the default console foreground and background colors in console command.com - Default Operating System Shell compmgmt.msc - Computer Management control.exe /name Microsoft.NetworkAndSharingCenter - Network and Sharing Center control keyboard - Keyboard Properties control mouse(or main.cpl) - Mouse Properties control sysdm.cpl,@0,3 - Advanced Tab of the System Properties dialog control userpasswords2 - Opens the classic User Accounts dialog desk.cpl - opens the display properties devmgmt.msc - Device Manager diskmgmt.msc - Disk Management diskpart - Disk management from the command line dsa.msc - Opens active directory users and computers dsquery - Finds any objects in the directory according to criteria dxdiag - DirectX Diagnostic Tool eventvwr - Windows Event Log (Event Viewer) explorer . - Open explorer with the current folder selected. explorer /e, . - Open explorer, with folder tree, with current folder selected. F7 - View command history find - Searches for a text string in a file or files findstr - Find a string in a file firewall.cpl - Opens the Windows Firewall settings fsmgmt.msc - Shared Folders fsutil - Perform tasks related to FAT and NTFS file systems ftp - Transfers files to and from a computer running an FTP server service getmac - Shows the mac address(es) of your network adapter(s) gpedit.msc - Group Policy Editor gpresult - Displays the Resultant Set of Policy (RSoP) information for a target user and computer httpcfg.exe - HTTP Configuration Utility iisreset - To restart IIS InetMgr.exe - Internet Information Services (IIS) Manager 7 InetMgr6.exe - Internet Information Services (IIS) Manager 6 intl.cpl - Regional and Language Options ipconfig - Internet protocol configuration lusrmgr.msc - Local Users and Groups Administrator msconfig - System Configuration notepad - Notepad? ;) mmsys.cpl - Sound/Recording/Playback properties mode - Configure system devices more - Displays one screen of output at a time mrt - Microsoft Windows Malicious Software Removal Tool mstsc.exe - Remote Desktop Connection nbstat - displays protocol statistics and current TCP/IP connections using NBT ncpa.cpl - Network Connections netsh - Display or modify the network configuration of a computer that is currently running netstat - Network Statistics net statistics - Check computer up time net stop - Stops a running service. net use - Connects a computer to or disconnects a computer from a shared resource, or displays information about computer connections odbcad32.exe - ODBC Data Source Administrator pathping - A traceroute that collects detailed packet loss stats perfmon - Opens Reliability and Performance Monitor ping - Determine whether a remote computer is accessible over the network powercfg.cpl - Power management control panel applet quser - Display information about user sessions on a terminal server qwinsta - See disconnected remote desktop sessions reg.exe - Console Registry Tool for Windows regedit - Registry Editor rasdial - Connects to a VPN or a dialup network robocopy - Backup/Restore/Copy large amounts of files reliably rsop.msc - Resultant Set of Policy (shows the combined effect of all group policies active on the current system/login) runas - Run specific tools and programs with different permissions than the user's current logon provides sc - Manage anything you want to do with services. schtasks - Enables an administrator to create, delete, query, change, run and end scheduled tasks on a local or remote system. secpol.msc - Local Security Settings services.msc - Services control panel set - Displays, sets, or removes cmd.exe environment variables. set DIRCMD - Preset dir parameter in cmd.exe start - Starts a separate window to run a specified program or command start. - opens the current directory in the Windows Explorer. shutdown.exe - Shutdown or Reboot a local/remote machine subst.exe - Associates a path with a drive letter, including local drives systeminfo -Displays a comprehensive information about the system taskkill - terminate tasks by process id (PID) or image name tasklist.exe - List Processes on local or a remote machine taskmgr.exe - Task Manager telephon.cpl - Telephone and Modem properties timedate.cpl - Date and Time title - Change the title of the CMD window you have open tracert - Trace route wmic - Windows Management Instrumentation Command-line winver.exe - Find Windows Version wscui.cpl - Windows Security Center wuauclt.exe - Windows Update AutoUpdate Client

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• Why is my router not routing?

  - by dwj

  Starting a week and half ago my router stopped working with my cable modem. I went to sleep with it working and woke up with it not. I swapped in another router and am still having issues; I was gone for 10 days so now I'm back to trying to figure it out. While I was gone I left everything (cable modem, router, and computer) powered off. My setup: Comcast Ambit cable modem (from Comcast) Netgear WGR614 v4 router -- replaced with Linksys WRT54GS v1.1 Windows XP SP3 other computers, all currently unplugged The modem is using the firmware (ver 2.105.2001) provided by Comcast; hardware version 1.3 The Linksys router is using FW ver 4.71.4 (latest for this release of HW), factory defaults I am only using the wired connections; no wireless. I have swapped out all of the cat5 cable. If I plug my computer directly into the cable modem, I can ping by name or number. Everything works perfectly. If I plug my computer into the router and the router into the modem, I cannot access anything outside of my local network. This is the exact setup I've used for the past 5 years; there were no changes in the past year. Now here's the interesting part: I can log into the Linksys router and get status information from it; everything appears good. Using the Diagnostics, I can run ping and traceroute to any site on the internet. These work perfectly. From my computer, I can ping the router and the modem. However, I cannot ping anything on the internet by with name or number. If I plug in another computer, I can ping it successfully. I've included two transcripts below that show these two attempts. Addresses, DNS, gateways, etc. look good. I cannot access the internet through either router. I am at a loss here. Suggestions? Help! Computer to Router to Cable Modem C:\ipconfig /renew Windows IP Configuration No operation can be performed on Bluetooth Network while it has its media disconnected. Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : hsd1.ca.comcast.net. IP Address. . . . . . . . . . . . : 192.168.1.100 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 Ethernet adapter Bluetooth Network: Media State . . . . . . . . . . . : Media disconnected C:\ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : wynton Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : hsd1.ca.comcast.net. Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : hsd1.ca.comcast.net. Description . . . . . . . . . . . : Intel(R) 82562V-2 10/100 Network Connection Physical Address. . . . . . . . . : 00-1D-09-9B-45-EB Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.1.100 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 68.87.76.178 68.87.78.130 Lease Obtained. . . . . . . . . . : Monday, March 22, 2010 10:21:55 PM Lease Expires . . . . . . . . . . : Tuesday, March 23, 2010 10:21:55 PM Ethernet adapter Bluetooth Network: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : Bluetooth LAN Access Server Driver Physical Address. . . . . . . . . : 00-0A-3A-6F-68-41 C:\ping google.com Ping request could not find host google.com. Please check the name and try again . C:\ping 74.125.19.104 Pinging 74.125.19.104 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 74.125.19.104: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), C:\ Computer to Cable Modem Directly C:\ipconfig /renew Windows IP Configuration No operation can be performed on Bluetooth Network while it has its media disconnected. Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : hsd1.ca.comcast.net. IP Address. . . . . . . . . . . . : 71.204.149.195 Subnet Mask . . . . . . . . . . . : 255.255.252.0 Default Gateway . . . . . . . . . : 71.204.148.1 Ethernet adapter Bluetooth Network: Media State . . . . . . . . . . . : Media disconnected C:\ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : wynton Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : hsd1.ca.comcast.net. Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : hsd1.ca.comcast.net. Description . . . . . . . . . . . : Intel(R) 82562V-2 10/100 Network Connection Physical Address. . . . . . . . . : 00-1D-09-9B-45-EB Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 71.204.149.195 Subnet Mask . . . . . . . . . . . : 255.255.252.0 Default Gateway . . . . . . . . . : 71.204.148.1 DHCP Server . . . . . . . . . . . : 68.87.76.10 DNS Servers . . . . . . . . . . . : 68.87.76.178 68.87.78.130 Lease Obtained. . . . . . . . . . : Monday, March 22, 2010 10:18:50 PM Lease Expires . . . . . . . . . . : Monday, March 22, 2010 11:12:31 PM Ethernet adapter Bluetooth Network: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : Bluetooth LAN Access Server Driver Physical Address. . . . . . . . . : 00-0A-3A-6F-68-41 C:\ping google.com Pinging google.com [74.125.19.99] with 32 bytes of data: Reply from 74.125.19.99: bytes=32 time=20ms TTL=55 Reply from 74.125.19.99: bytes=32 time=17ms TTL=55 Reply from 74.125.19.99: bytes=32 time=28ms TTL=55 Reply from 74.125.19.99: bytes=32 time=18ms TTL=55 Ping statistics for 74.125.19.99: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 17ms, Maximum = 28ms, Average = 20ms C:\ping 74.125.19.104 Pinging 74.125.19.104 with 32 bytes of data: Reply from 74.125.19.104: bytes=32 time=18ms TTL=55 Reply from 74.125.19.104: bytes=32 time=18ms TTL=55 Reply from 74.125.19.104: bytes=32 time=17ms TTL=55 Reply from 74.125.19.104: bytes=32 time=16ms TTL=55 Ping statistics for 74.125.19.104: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 16ms, Maximum = 18ms, Average = 17ms C:\

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• Bypass BIOS password set by faulty Toshiba firmware on Satellite A55 laptop?

  - by Brian

  How can the CMOS be cleared on the Toshiba Satellite A55-S1065? I have this 7 year old laptop that has been crippled by a glitch in its BIOS: 'A "Password =" prompt may be displayed when the computer is turned on, even though no power-on password has been set. If this happens, there is no password that will satisfy the password request. The computer will be unusable until this problem is resolved. [..] The occurrence of this problem on any particular computer is unpredictable -- it may never happen, but it could happen any time that the computer is turned on. [..] Toshiba will cover the cost of this repair under warranty until Dec 31, 2010.' -Toshiba As they stated, this machine is "unusable." The escape key does not bypass the prompt (nor does any other key), thus no operating system can be booted and no firmware updates can be installed. After doing some research, I found solutions that have been suggested for various Toshiba Satellite models afflicted by this glitch: "Make arrangements with a Toshiba Authorized Service Provider to have this problem resolved." -Toshiba (same link). Even prior to the expiration of Toshiba's support ("repair under warranty until Dec 31, 2010"), there have been reports that this solution is prohibitively expensive, labor charges accruing even when the laptop is still under warranty, and other reports that are generally discouraging: "They were unable to fix it and the guy who worked on it said he couldn’t find the jumpers on the motherboard to clear the BIOS. I paid $39 for my troubles and still have the password problem." - Steve. Since the costs of the repairs can now exceed the value of the hardware, it would seem this is a DIY solution, or a non-solution (i.e. the hardware is trash). Build a Toshiba parallel loopback by stripping and soldering the wires on a DB25 plug to connect connect these pins: 1-5-10, 2-11, 3-17, 4-12, 6-16, 7-13, 8-14, 9-15, 18-25. -CGSecurity. According to a list of supported models on pwcrack, this will likely not work for my Satellite A55-1065 (as well as many other models of similar age). -pwcrack Disconnect the laptop battery for an extended period of time. Doesn't work, laptop sat in a closet for several years without the battery connected and I forgot about the whole thing for awhile. The poor thing. Clear CMOS by setting the proper jumper setting or by removing the CMOS (RTC) battery, or by short circuiting a (hidden?) jumper that looks like a pair of solder marks -various sources for various Satellite models: Satellite A105: "you will see C88 clearly labeled right next the jack that the wireless card plugs into. There are two little solder squares (approx 1/16") at this location" -kerneltrap Satellite 1800: "Underneath the RAM there is black sticker, peel off the black sticker and you will reveal two little solder marks which are actually 'jumpers'. Very carefully hold a flat-head screwdriver touching both points and power on the unit briefly, effectively 'shorting' this circuit." -shadowfax2020 Satellite L300: "Short the B500 solder pads on the system board." -Lester Escobar Satellite A215: "Short the B500 solder pads on the system board." -fixya Clearing the CMOS could resolve the issue, but I cannot locate a jumper or a battery on this board. Nothing that looks remotely like a battery can be removed (everything is soldered). I have looked closely at the area around the memory and do not see any obvious solder pads that could be a secret jumper. Here are pictures (click for full resolution) : Where is the jumper (or solder pads) to short circuit and wipe the CMOS on this board? Possibly related questions: Remove Toshiba laptop BIOS password? Password Problem Toshiba Satellite..

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