There's no easy answer to your question. It depends on what has gone bad.
The following questions are rhetorical - I don't expect that you'll know the answers to them (and I wouldn't know them either).
Is it the sectors of the hard drive that the OKR resides on that's bad? (a hardware problem)
Is it corruption of the files in the OKR? (a software problem)
Does the damage only involve (for example) a text file - or has it damaged executables or other critical files?
Start with these free hardware diagnostics: http://www.carrona.org/hwdiag.html
The hard drive test will be easiest to run inside of Windows (rather that the bootable tests I suggest at first)
Please run ALL of the tests and let us know the results.
Also, Please run this report collecting tool so that we can provide a complete analysis: (from the pinned topic at the top of the forum) http://www.bleepingcomputer.com/forums/t/576314/blue-screen-of-death-bsod-posting-instructions-windows-10-81-8-7-vista/
FYI - I don't often use the Perfmon report, so if it doesn't work please just let me know.
NOTE: On problem systems it can take up to 20 minutes for the log files to complete. Please be patient and let it run.
If you still have problems with it running, there's an alternate tool here (direct download link): https://github.com/blueelvis/BSOD-Inspector/releases/download/1.0.5/BSODInspector-1.0.5.exe
Please zip up the (.ZIP) files - do not use .RAR or other compression utilities.
.ZIP is the type file that can be uploaded to the forums.
My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able. - John
(my website: http://www.carrona.org/
)**If you need a more detailed explanation, please ask for it. I have the Knack
. ** If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.
<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.