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Windows 7: What causes a CHKDSK to turn off the computer?

29 Jan 2014   #1

Windows 7 Home Premium 64 bit SP1
What causes a CHKDSK to turn off the computer?

Windows 7 Home Premium SP1

Trying to back up C:, D: & System drives using Windows Backup, Acronis, and Macrium all fail after about 65%. Acronis screenshot attached. The other programs don't even give that much info, or I couldn't find logs. How do I turn on deep logging for any of these programs? How can I find out what file occupies the sector identified in the Acronis error?

I ran CHKDSK C: /R /F on bootup and left for work. I come home and the computer's off. I ran it in the evening and it got into Stage 4 of 5 for a long time. It seemed to be stalled at 79% for a long time but then it finally went on to 80% so I figured it was just on some big file. I did something else for about 15 minutes and then looked back and my computer was off again! Backups continue to fail. What causes a CHKDSK to turn off the computer? I'm baffled! I hope I can solve this without staring at CHKDSK for 45 minutes only to find out the info I need just flashes by.

Thank you,
Bent Franklin

Attached Images
My System SpecsSystem Spec

03 Feb 2014   #2

Windows 7 Home Premium 64 bit SP1

I still don't know what caused the backups to fail, but I figured out what was happening with CHKDSK. Last night I ran it in a DOS window from the System repair disk. It got hung up on different steps but always seemed to keep going eventually. It was stuck at one point for a while and then the screen started flipping out and then it froze. It wouldn't reboot. So I thought I was hosed. But I took it apart and noticed it was really hot. I think it overheated, which would explain all the shutdowns. After a few hours I started it back up and I'm back in business. Now I have to figure out how to get a backup with a disk that has a major problem.

Of course that doesn't answer the question: Why would CHKDSK cause it to overheat just because it got stuck on one sector of the disk? Why didn't it just mark it as bad and move on?
My System SpecsSystem Spec

 What causes a CHKDSK to turn off the computer?

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