Hi guys i am getting nut reinstalling windows 7 on one of those Acer aspire all-in-one... The original OS(windows professional x64) was not starting, after the initial screen the bios was prompted. So

step 1: i tried to access the system partition and reinstall everything but could not get at the point

step 2: i set the bios to native ide and i tried to insert my original copy of windows professional and do a clean installation, but it does not allow me to format/create other partion form the installation mask

step 3: my BAD, i tried to install ubuntu and i clean the whole hard drive, i was getting an error at some point during installation so i decided to get back to windows

step 4: Windows 7 again, at the disk screen of the windows installation i entered into the prompt and played around with DISKPART...

-i listed the disk and the HD was disk 0.

-i selected disk 0.

-i CLEAN disk 0 successfully.

-i tried to create a CREATE PARTITION PRIMARY but gave an error cache corrupt and disk not up-to-date (after i try to create a partiton in disk 0 it disappear when i try LIST DISK and i have to restart before he can list DISK 0 again, RESCAN did not worked).

-tried CLEAN ALL(2 hours) and succeeded.

-try again to create primary partition and failed, same errors -try to install my old copy of windows xP pro and it seems to work, it create a partition, format(only quick worked, slow mode was at 0% after 1 hour so i stop), it start installing and around 90% installation said it could not copy a file and he stop -back on windows 7 again, it says that the hard drive has 490+gb unpartitioned but won't create a partition and format.

-i tried again DISKPART as i though i messed up with the MBR when i installed ubuntu, so i did all of the instruction below

http://www.sevenforums.com/tutorials/20864-mbr-restore-windows-7-master-boot-record.html

http://support.microsoft.com/kb/927392

the errors were: on bootsect: the systne partiton was not found, Data error cyclic redundancy check

on bootrec /FixMbr: A device attached to the system is not functioning

but did not worked, and still can not partiton/format/install on a blank HD

i tried some bootable clean disk tool and start infinite loop on the same errors

the bios setting are: sata: native ide. if i put AHCL(or something like that does not load the HD and the DVD). quick start/quite start: disabled.

Are there any other option or tools i can try before i try change the HD(That is my last option)?

Thanks to everyone.