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Windows 7: Unmountable boot volume BSOD - Win7.64

16 Dec 2014   #1
nationale7

Windows 7 Home Premium 64bit
 
 
Unmountable boot volume BSOD - Win7.64

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


My System SpecsSystem Spec
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17 Dec 2014   #2
RogerR

7 x64 Ultimate
 
 

Run Checkdisk and the manufacturer's hard disk diagnostic utility. If the drive is good, try Minitool Partition Wizard (free).
My System SpecsSystem Spec
17 Dec 2014   #3
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

Look in your bios and see if the hard drive is seen. If it is, try running startup repair Startup Repair

If it is not try running the DOS version of Seatools SeaTools for DOS and Windows - How to Use

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. Clean Install Windows 7
My System SpecsSystem Spec
.

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 Unmountable boot volume BSOD - Win7.64




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