Unmountable boot volume BSOD - Win7.64

[nationale7]

Hello,

When booting or trying to repair, I get Unmountable_boot_volume BSODs.

Before that:
- blue screens caused by defective RAM, so i kept the only running module in my laptop
- then very slow boot (up to 20 min) and windows sessions
- then BSOD mentioning Iastor.sys
- and now Unmountable_boot_volume when trying to boot or repair startup.

I have Hiren and WinRE (but no Win7 installation disc), so I tried various things, like fixing MBR but it tells me he can't find a system volume, repairing with WinRe but, of course, no system partition is listed in the box.

I also have setup my HDD to IDE instead of AHCI in the BIOS.

At this point, what should I do?

Thanks

N7

 

[RogerR]

Run Checkdisk and the manufacturer's hard disk diagnostic utility. If the drive is good, try Minitool Partition Wizard (free).

 

[essenbe]

Look in your bios and see if the hard drive is seen. If it is, try running startup repair http://www.sevenforums.com/tutorials/681-startup-repair.html

If it is not try running the DOS version of Seatools http://www.sevenforums.com/tutorials/313457-seatools-dos-windows-how-use.html#Part3

If you do not have an Installation disk in this clean install tutorial, look under Here's How in the blue note section for a link to the Windows 7 download link, just be sure to download the same version you currently have. http://www.sevenforums.com/tutorials/1649-clean-install-windows-7-a.html