I recently tried to run services.msc
and I noticed it had vanished from my hard drive. So I had the great idea of looking up a windows xp cd, booting from it and selecting the "repair existing windows install" option.
Everything was going just fine until I almost hit the end of the progress bar and I got a message box with the message:
"The exception unknown software exception (0xc0000409) occurred in the application at location 0x6976ea96"
After that, I hit OK, and the machine reboots, goes into setup again, gets the same exception, and so on, ad infinitum.
I tried booting with Hirens Boot CD 14.1 and running the Registry Backup & Restore Tool as suggested here, but I got an error, and I doubt it'd have worked since I only have a CCleaner .reg backup from ages ago.
I read somewhere that repair can only be done successfully if you use the exact same cd you used for installing. I'm not sure if I used the same one, and it'd be quite gruesome to look for the one I used for the install.
Any other suggestion?
Update:
Long Test
without any errorsSo it doesn't seem to be a hardware problem...
I am guessing that there is a hardware component that is failing. Check for bulging capacitors on the motherboard or other obvious signs of damage internally.
If there isn't any obvious damage you can test the HD with a tool like Drive fitness Test, it will report if the drive has bad sectors.
If the HD passes the fitness test and there are no bad capacitors check for bad RAM with something like Memtest 86.
As for the version of windows, it really just depends on the specific version. For example a home or pro version. It sounds like you have a compatible disk already though if you were able to initialize the repair install.
It was a hard drive failure; I copied most of the failing drive's contents using Clonezilla, and I got my system back up
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