Solved Random BSOD-s. Just happened again after reinstalling windows.

[writhziden]

Problematic Software:

Start Menu\Programs\MSI Afterburner	Ardi-PC\Ardi:Start Menu\Programs\MSI Afterburner	Ardi-PC\Ardi

• MSI Afterburner/RivaTuner is known to cause instability with systems. Please remove the software.

 

[Dafix]

Thanks, I uninstalled it. But today, when starting a game, I got another bsod.

APC_INDEX_MISMATCH Ntfs.sys
Ntfs.sys+8c1f8 ntoskrnl.exe+7f1c0

This means corrupted or broken RAM?

Also one buddy said this might be important:

Whenever I start my PC, I have about 2000 - 3500 free Physical memory. But after playing some games, browsing internet, watching videos, it drops to 600 (more or less). Eventhough I close all the applications, it still stays there, or raises to about 1000.

 

[writhziden]

A 0x1 BugCheck in my experience typically means the OS is damaged; if the files themselves come back clean through an sfc /scannow, then it is probably the registry that has been corrupted or stripped down beyond repair. I would recommend a repair install:

• You will need to http://www.sevenforums.com/tutorials/3413-repair-install.html Windows 7.
  
  Steps 1-3 and 5-7 of http://www.sevenforums.com/tutorials/219487-clean-reinstall-factory-oem-windows-7-a.html#post1839164 will help you get installation media, backup any important files (just in case), and obtain your license keys for software (just in case) and the Windows license key (you will need this key).

You may also want to run all SeaTools tests that you have not yet run. Do not worry about the advanced tests, but all other tests should be run.