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I installed the release version of windows 8 professional (which I got through my university). I installed Ubuntu on another drive so I can select which drive to boot in the BIOS. All was well... until I tried mounting my windows partition. I got the following message:

Error mounting: mount exited with exit code 14: Hibernated non-system partition

I was sure I did not hibernate my system... it must be part of the new hybrid boot thing. I went ahead and ran the suggested command. After all... whats the worst that can happen. I'd probably just lose some saved session information right?... Wrong! Windows 8 now perpetually reboots after showing a brief message about trying to fix itself.

I found that startup repair fails when I run it from the install disk using the [DVD drive] boot device. When I boot the DVD drive as [UEFI DVD drive], startup repair automatically does a system restore and appears to complete successfully... but windows 8 still perpetually reboots.

After some research, I found that the file that my mount command probably deleted was hiberfil.sys in the root directory of the C drive. I tried undeleting it with testdisk but my repeated system restore attempts seem to have overwritten it.

Does anyone else have any ideas on how to get windows to boot again?

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I installed windows 8 on another drive. I booted an Ubuntu live cd and mounted my new installation as read-only. Then I copied hiberfil.sys from my new installation to the old windows installation. At this point my old installation was able to successfully repair itself upon restart.

Some programs are missing though.

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