That was actually precisely what my win installation was doing when I've had an insufficient power source. It ran fine for like 2 weeks, then it started slowing down, then it started giving me BSODs. Is that your problem as well? I have no idea. You know it would be useful if you could post the specs.

Cmd prompt with administrator privileges.

Well, it never started slowing down for me it just starts BSODs strictly once a day. Is there any application that could round up the specs of my PC, so I wouldn't miss something important?

OS: Microsoft Windows 7 Ultimate Edition Service Pack 1 (build 7601), 64-bit
CPU: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
RAM: 8,2 GB
Video Card: GeForce GTX 550 Ti

Did I miss something?

run->type in dxdiag

You can check if your PSU is powerful enough here http://www.extreme.outervision.com/psucalculatorlite.jsp Add 20+% for aging and see if it's good enough. If it's near the 100% and it's cheap one, it's likely the cause.

Found something?

This is what I've got.

Reboot system & give us that log file :)

Rebooted system and what log file!?

Oh, silly question. One moment, 'till I find it!

Fixed something on reboot?

C:\Windows\Logs\CBS\CBS.log

Looked like it, but it was very brief, so couldn't catch what actually got fixed. And I seem to have all the privileges of an administrator, but keep getting my access denied to the log file.

Copied it to desktop and looks like I can open it. It's really huge, should I look for something or just upload the whole thing?

If you have corrupted files try this application: HDD Regenerator

The trial can only do so much but it couldn't hurt, at least you will get more information.

You are generally looking for "Repair" in log file.
Modern HDD-s hide their bad sectors in hidden area. AFAIK, chkdsk can't see those, not sure about HDD regenerator. Ever wondered why you don't get full capacity? :)