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  • Do different operating systems have different read and write speeds?

    - by Ivan
    If I have two different operating systems, such as Windows 8 and Ubuntu, running on the same hardware, will the two operating systems have different read and write speeds? My guess is that there would be minimal difference between operating systems and read and write speeds to the hard disk since the major limited factor is seeking; however, different operating systems may use different file systems in order to attempt to reduce seek time in the hard disk. Likewise, I'm sure that modern operating systems will not actually write directly to the hard disk, and instead will just have it in memory and marked with a dirty bit. Are there any studies that show differences in read and write speeds between OSs? Or would the file system being used by the OS matter more than the OS itself?

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  • fills password and enters program automatically

    - by mark
    I am running Windows 7. In Internet Explorer 9, when I visit a webpage and enter a password it is automatically remembered. When I leave the site and return again at another time, the password is filled in automatically. I would like to stop this behavior. I do not not think that it is an auto fill problem. I think it may be related to an addon provided by my OEM and published by Authentic called "Truesuite Website Log On". How can I confirm that Truesuite is the culprit? How can I stop passwords from being filled in automatically.

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  • How to run Windows 7 Explorer shell with Administrator Privileges by default

    - by Barry Kelly
    The Windows 7 shell (Explorer) can be made to run with Administrator privileges by this manual process: Kill Explorer shell by holding down Shift+Ctrl, right-clicking the Shut down button in the Start Menu, and selecting Exit Explorer Start Task Manager with Ctrl+Shift+Esc Elevate Task Manager privileges by going to Processes tab and selecting Show processes from all users Then start up a new instance of the shell by File | Run in Task Manager, typing in explorer, and selecting the Create this task with administrative privileges. After following the above process, the Windows shell will be running with administrative privileges, and any programs it launches will also have administrative privileges. This makes performing tasks that require the privilege far easier, particularly for command-line applications, which usually fail silently or with an Access denied. message rather than giving an opportunity to use UAC to elevate the process's privileges. What I'm interested in, though, is creating an account which uses a privileged shell by default, rather than having to follow this laborious process every time. How can it be done?

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  • What is a reasonable range for signal strength when next to my router?

    - by Jeff
    I know that these things depend largely on specific hardware but I don't even know if I am in the neighborhood. What would a reasonable range of signal strength be when my device is less than 5 feet from my router? House3 is my main router at 61% strength and that seems very low! Repeater is my... repeater which is 50' away in the next room. I'm not terribly concerned with the Repeater until I get my main router settled.

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  • Forward all tracif from one IP to another Ip on OS X

    - by Josh
    This is related to this question I just asked... I have two IP address on my iMac I want to "bridge". I'm not sure what the proper terminology is... here's the situation. My iMac has a firewire connection to my laptop and an ethernet connection to the rest of my office. My laptop has an ip of 192.168.100.2 (on the firewire interface). My iMac has an IP of 192.168.100.1 on the firewire interface, and two IPs, 10.1.0.6 and 10.1.0.7, on it's ethernet interface. If I wanted to forward all traffic coming in from 192.168.100.2 on my OS X machine to go out on IP 10.1.0.7, and vice-versa, can this be done? I assume I would use the ipfw command. Essentially I want to "bridge" the firewire network to the ethernet network so my laptop can see all the machines on the 10.1 network, and all those machines can see my laptop at 10.1.0.7. Is this possible?

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  • TP-LINK TD-W8151N Modem/router as just wi-fi router

    - by Reshma
    I am planning to buy TP-LINK ADSL wifi router (model TD-W8151N) for my Internet connection which provides Internet through ADSL telephone line. I am also planning to take cable internet in a few months which provides internet through a LAN cable without the need of any modem. So I would like to have my modem work for both connections which I am using. When using cable internet I want this TP-Link modem to work just as a wireless router (so that I can have the freedom to use my laptop in different rooms instead of sitting at a place by plugging in that cable). Is it possible to use this modem in that way? I don't have much knowledge about these things except that I can configure things as instructed. Please suggest me whether I should go ahead and buy this one or if there is any other modem in your view which can serve both my purposes, let me know. Operating System I am using: Windows 7

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  • How to convert pcm to mp3?

    - by avirk
    I have some .pcm files and I want to convert them on high quality .mp3 format. I tried to find tools by Google search but did not get the right one for me. I will prefer the freeware but if there is not a good freeware then I can also consider the shareware. The pcm format has much large files as I have 200-500 mb so the tool should be able to handle the large files. Please help me regard this problem.

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  • /dev/sda1 not a subset of /dev/sda?

    - by Guillaume Brunerie
    Hi, the first entry of my partition table is: $ sudo hexdump -Cv -n 16 -s 446 /dev/sda 000001be 80 01 01 00 83 fe ff ff 3f 00 00 00 81 1c 20 03 |........?..... .| (-Cv describe the output format, -n 16 asks for 16 bytes and -s 446 skips the first 446 bytes) You can see that my first partition is a primary Linux partition and that this partition begin at sector 63 (see for example here for the structure of the partition table). I would then expect that except for the first 63 sectors and the other partitions, /dev/sda1 and /dev/sda are exactly the same. But this is not the case, the sector #2 of /dev/sda1 is not exactly the same as the sector #65 of /dev/sda (but they are very similar, only 16 bytes are different): $ sudo hexdump -Cv -n 512 -s 65b /dev/sda 00008200 00 20 19 00 90 03 64 00 2d 00 05 00 5a 2f 56 00 |. ....d.-...Z/V.| 00008210 b6 b1 16 00 00 00 00 00 02 00 00 00 02 00 00 00 |................| 00008220 00 80 00 00 00 80 00 00 00 20 00 00 d8 38 ee 4c |......... ...8.L| 00008230 9a 01 ef 4c 05 00 24 00 53 ef 01 00 01 00 00 00 |...L..$.S.......| 00008240 59 23 e9 4c 00 4e ed 00 00 00 00 00 01 00 00 00 |Y#.L.N..........| 00008250 00 00 00 00 0b 00 00 00 00 01 00 00 3c 00 00 00 |............<...| 00008260 42 02 00 00 7b 00 00 00 85 23 eb f2 71 67 44 f5 |B...{....#..qgD.| 00008270 bb 8f 6f f2 3a 59 ff 4d 55 62 75 6e 74 75 00 00 |..o.:Y.MUbuntu..| 00008280 00 00 00 00 00 00 00 00 2f 75 62 75 6e 74 75 00 |......../ubuntu.| 00008290 d8 3c df 5d 00 88 ff ff 52 d0 ef 1d 00 00 00 00 |.<.]....R.......| 000082a0 c0 40 51 b6 00 88 ff ff 00 4e c8 bb 00 88 ff ff |[email protected]......| 000082b0 c0 f6 86 b8 00 88 ff ff 30 2e 0d a0 ff ff ff ff |........0.......| 000082c0 38 3d df 5d 00 88 ff ff 00 00 00 00 00 00 fe 03 |8=.]............| 000082d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000082e0 08 00 00 00 00 00 00 00 00 00 00 00 8a 53 d3 0e |.............S..| 000082f0 7c 7a 43 e4 8b fb ca e0 72 b7 fa c8 01 01 00 00 ||zC.....r.......| 00008300 00 00 00 00 00 00 00 00 16 4c 47 4b 0a f3 03 00 |.........LGK....| 00008310 04 00 00 00 00 00 00 00 00 00 00 00 fe 7f 00 00 |................| 00008320 24 b7 0c 00 fe 7f 00 00 01 00 00 00 22 37 0d 00 |$..........."7..| 00008330 ff 7f 00 00 01 00 00 00 23 37 0d 00 00 00 00 00 |........#7......| 00008340 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 |................| 00008350 00 00 00 00 00 00 00 00 00 00 00 00 1c 00 1c 00 |................| 00008360 01 00 00 00 e9 7f 00 00 00 00 00 00 00 00 00 00 |................| 00008370 00 00 00 00 04 00 00 00 9f 7d bb 00 00 00 00 00 |.........}......| 00008380 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00008390 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000083a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000083b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000083c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000083d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000083e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000083f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| versus $ sudo hexdump -Cv -n 512 -s 2b /dev/sda1 00000400 00 20 19 00 90 03 64 00 2d 00 05 00 5a 2f 56 00 |. ....d.-...Z/V.| 00000410 b6 b1 16 00 00 00 00 00 02 00 00 00 02 00 00 00 |................| 00000420 00 80 00 00 00 80 00 00 00 20 00 00 df 76 ef 4c |......... ...v.L| 00000430 df 76 ef 4c 06 00 24 00 53 ef 01 00 01 00 00 00 |.v.L..$.S.......| 00000440 59 23 e9 4c 00 4e ed 00 00 00 00 00 01 00 00 00 |Y#.L.N..........| 00000450 00 00 00 00 0b 00 00 00 00 01 00 00 3c 00 00 00 |............<...| 00000460 46 02 00 00 7b 00 00 00 85 23 eb f2 71 67 44 f5 |F...{....#..qgD.| 00000470 bb 8f 6f f2 3a 59 ff 4d 55 62 75 6e 74 75 00 00 |..o.:Y.MUbuntu..| 00000480 00 00 00 00 00 00 00 00 2f 75 62 75 6e 74 75 00 |......../ubuntu.| 00000490 d8 3c df 5d 00 88 ff ff 52 d0 ef 1d 00 00 00 00 |.<.]....R.......| 000004a0 c0 40 51 b6 00 88 ff ff 00 4e c8 bb 00 88 ff ff |[email protected]......| 000004b0 c0 f6 86 b8 00 88 ff ff 30 2e 0d a0 ff ff ff ff |........0.......| 000004c0 38 3d df 5d 00 88 ff ff 00 00 00 00 00 00 fe 03 |8=.]............| 000004d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000004e0 08 00 00 00 00 00 00 00 00 00 00 00 8a 53 d3 0e |.............S..| 000004f0 7c 7a 43 e4 8b fb ca e0 72 b7 fa c8 01 01 00 00 ||zC.....r.......| 00000500 00 00 00 00 00 00 00 00 16 4c 47 4b 0a f3 03 00 |.........LGK....| 00000510 04 00 00 00 00 00 00 00 00 00 00 00 fe 7f 00 00 |................| 00000520 24 b7 0c 00 fe 7f 00 00 01 00 00 00 22 37 0d 00 |$..........."7..| 00000530 ff 7f 00 00 01 00 00 00 23 37 0d 00 00 00 00 00 |........#7......| 00000540 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 |................| 00000550 00 00 00 00 00 00 00 00 00 00 00 00 1c 00 1c 00 |................| 00000560 01 00 00 00 e9 7f 00 00 00 00 00 00 00 00 00 00 |................| 00000570 00 00 00 00 04 00 00 00 a3 7d bb 00 00 00 00 00 |.........}......| 00000580 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000590 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000005a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000005b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000005c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000005d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000005e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000005f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| For example in the third line, there is a 8.L in the first hexdump and v.L in the second. Why are there differences?

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  • wvMaxima Error: "Not Connected To Maxima" on Windows

    - by muntoo
    Maxima gives an error "Not Connected To Maxima" whenever I try to do anything with it. I've looked around, but I couldn't figure out how to fix this on Windows. The only results I got were for Fedora. According to them, I think this may have something to do with the Firewall, but I can't figure out what. I even tried adding wvMaxima to the Windows Firewall exceptions list, but the same error comes up.

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  • Troubleshooting certificate issues

    - by Weezy
    I'm trying to access my (European Parliament) Webmail from a Linux/Firefox machine at the following address and I get security warning messages explaining that the identity of the site cannot be verified (the error message is in french). But this only happens with Linux/Firefox from one machine. Here's the address: https://webmail.europarl.europa.eu/ (and I'm trying to access it from my home, not from the EP). And here's the detailed error message: webmail.europarl.europa.eu utilise un certificat de sécurité invalide. Le certificat n'est pas sûr car l'autorité délivrant le certificat est inconnue. (Code d'erreur : sec_error_unknown_issuer) So basically, if I translate, it is telling that the webmail.europarl.europa.eu certificate is invalid because the authority that delivered the certificate is unknown. I do only get this invalid certificate thing on Linux/Firefox. From a MacBookPro running Safari, I go to what looks like the correct webmail login page. From the same Linux machine, but using another user account and Chrome instead of Firefox, I go to what looks like the correct webmail login page. So there are several possibilities, here are a few ones: Firefox is right and my Linux box has been hacked Firefox is right and detecting something that neither Chrome nor Safari is detecting (like, say, my router that may be hacked) Safari on the MacBook Pro and Chrome on Linux are both correct and it is just Firefox on Linux that is wrongly stressing me when everything is normal. How do I know which one of these possibilities (or any other) is correct? How can I troubleshoot what is going on with either Linux/Firefox or with the parliament's webmail?

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  • Windows activation on a Virtual Machine (Physical->VM)

    - by Daisetsu
    I backed up a number of laptops to virtual machines before they are to be re-purposed, in case I need the data at some later time. While the Physical to VM processes worked fine I am encountering issues on some of the VMs. When I boot them I get an error message saying I MUST activate windows in order to login. This is expected because the hardware changed (from physical hardware to virtualized hardware). I click the OK button and expect to be prompted with ways to activate, windows sits there for quite a while then tells me that "Windows has already been activated". I click OK at that message and get take back to the beginning where I am asked to activate Windows. I have done some fairly intensive googling but haven't been able to find a real solution. EDIT: The laptops with the issues are 2 Sony Vaios, I believe that they have the OEM version of the OS originally installed by the factory.

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  • Home ZFS based NAS...What processor/chipset to use?

    - by MrBlargityBlarg
    So, I'm building a home/personal NAS. My plan is to expose both SMB fileshares for sharing files/media between hosts, but also to carve an iSCSI target LUN out of it for use by VMWare as a datastore. I want to use ZFS (software RAID) so that means I'll either be using FreeNAS, Solaris Express, or OpenIndiana. My question is basically: How much horsepower do I need? Obviously I/O is going to be my bottleneck but I want to be sure that I am not limiting my I/O because of a slow processor or chipset. So far the hardware plan is to use an Intel i3 and motherboard with one of the H87, Q87, or Z87 chipsets, a SAS controller (JBOD, no RAID) and if budget allows, I'm also hoping to get an SSD for the ZFS L2ARC and ZIL. Does anyone think I could get away with an Intel Atom or cheaper/less-capable processor/chipset than the i3 and [HQZ]87 listed above?

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  • Why does Chrome choke more often than IE 8 and Firefox?

    - by Jian Lin
    On my system, Chrome chokes quite more often than IE 8 or Firefox -- it searched for the website for 20 seconds and then said website not found. I wonder if it could be due to DNS issue or different browsers use different method to connecting to the internet (as Fiddler works for some browser and not for some)? any method to fix it? (the ISP here is AT&T u-verse, if it matters). thanks.

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  • Word 2010,Add bunch of words in paragraph in one step to spell checker dictionary?

    - by hasanghaforian
    I have to create Documents in about my project that is written in about Android.I use Word 2010 and I copy some lines of my code into the Word doc then I add my descriptions.My problem is huge number of error of spell checker of Word that arises in each paragraph(lines that I paste them from my code into Word).For example it may be used setSpan,removeSpan and ... in my codes and spell checker show red underline under all of them.You can see huge number of errors in a few lines that I paste them: Is there a way to add all spell errors to word dictionary at once for selected area?

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  • Force initial Google Drive sync with a non-empty folder?

    - by Terrance Shaw
    I upgraded my iMac with an SSD last night and restored from a Time Capsule backup. Everything is now working substantially zippier and overall better, with the exception of one thing: Google Drive refuses to continue to sync with the Google Drive folder that it'd been using before the upgrade, and I ultimately ended up having to just delete the folder and let it resync from scratch to get past its stubborn error (alternatively, I suppose I could've simply moved the contents, set the path to the now-empty folder, then moved them back). Is there any way to get past this particular issue (for future reference), or is it something that Google put in place to ensure that a new user doesn't go and specify their root drive as the backup destination?

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  • HP Omni 27-1027c AIO...Upgradeable?

    - by Bobo
    I just bought an HP Omni 27 1057c from Sams Club. I like it a lot, but I want more performance. discovered that the integrated Intel HD 2500 graphics is almost useless for most games. I found a website that says it can be upgraded at http://www.pcmag.com/article2/0,2817,2398314,00.asp. The computers specs can be found at Sams Club website or at HP website HP Product Specs. So what do you think? Can I upgrade Motherboard and Video Card?

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  • Backup the Windows user folder in the cloud?

    - by Benjamin
    As I understand it, Google Drive and Dropbox, the two cloud storage providers I happen to know, can only sync a predefined folder that is created upon installation. I'd be happy to have an automated synchronisation of my folders in the cloud, but I'm not ready to change my habits, and start saving all my documents in the folder imposed by the provider. Is it possible with one of these, or any other you might know, to sync the full Windows user folder instead?

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  • How to provide multiple input to ffmpeg?

    - by tomm89
    I'm using ffmpeg to create time-lapses and it's working great. As input I have images named 001.jpg, 002.jpg, etc. and then with the command ffmpeg -i %3d.jpg -sameq -s 1440x1080 video.mp4 I create the video. But my problem comes when I want to create a video using multiple sets as input. For example, I'm in a dir where I have two folders set1 and set2, each with photos in it in the format explained previously. I tried doing ffmpeg -i ./set1/%3d.jpg -i ./set2/%3d.jpg -sameq -s 1440x1080 video.mp4 but it ends up doing a video using only the first set. Is there an easy way to do this? Thanks!

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  • Windows 8 Task Manager without elevating?

    - by Ben Voigt
    In Windows Vista and Windows 7, the task manager ran non-elevated, and you didn't face a UAC prompt unless you chose "View Processes of All Users". In Windows 8 Preview, out of the box the Task Manager starts elevated every time. How can I configure it to start non-elevated so I don't get hit with a UAC prompt every time I check CPU usage or view the list of running processes to see if an application closed completely? (I am not looking for answers which involve weakening UAC, and I ask the community's help in downvoting any such suggestions.)

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  • Snort install issue on debian 6 with libpcre - libpcre library not found

    - by Chuck
    I've read the manual on snort.org for installing snort on Debian but am still having an issue. Does anyone know how to resolve this? I've tried installing the libpcre3 amd libpcre3-dev packages by using apt-get and also manually installing by downloading the latest version off the tcpdump website. Any ideas? Checking for pcre-compile in -l pcre...no Error! Libpcre library not found. Get it from http://www.pcre.org

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  • Good Word HTML cleaner?

    - by Tony_Henrich
    There are a ton of utilities for cleaning the html produced by Word. Some are online services and some are Windows desktop apps. Does anyone have good experience with any? I am looking for one that does a very good job of maintaining the layout and text styles of the original document. The people using the tool know very little or no html which means they can't be spending time doing html editing to fix the layout.

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  • Grub2 fails to chainload Windows 7 with error "invalid signature"

    - by atomicpirate
    I've built a new UEFI 64-bit system with both Windows 7 and Ubuntu 11.10 installed (on separate hard drives). I'd like to be able to boot Windows 7 from the grub menu, but I have so far been unsuccessful in getting grub to chainload it. After getting the grub menu, I choose the option for the command line and I can see that bootmgfw.efi is at (hd1,gpt1)/efi/Microsoft/Boot/bootmgfw.efi. However, when I attempt to chainload I get an error: grub> chainloader (hd1,gpt1)/efi/Microsoft/Boot/bootmgfw.efi error: invalid signature I am not sure whether I chose the UEFI boot option when I installed Linux from the LiveCD, and so I am wondering if the grub I have is perhaps unable to chainload in this manner? In any case I am not sure how to get the chainload to work.

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  • Fastest light-weight image viewer over forwarded x11 session (linux)

    - by Matthew
    I have a slow network connection over which I'm forwarding x11 over ssh. I want to view images on the remote host (Ubuntu) quickly and efficiently. I'm looking for an image viewer that will take into account the image viewer window's resolution and downsize the image before sending it over the network, instead of sending the full size image. The images I want to view will be around 5MB and I only need to be able to browse through tiny thumbnails of the images to identify the image I'm looking for. It is not necessary to be able to see more than one image at a time. Highest speed over slow network connection is the priority. Thanks! Matthew EDIT: It's possible that the way x11 forwarding works, only the image at the display resolution will be transferred anyway. If that's true, please confirm and the question still stands for which image viewer will be the fastest over a slow connection

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