Almost 99% of all BSOD (Blue Screen of Death) in a Windows PC are due to system file corruption by virus, trojan, worm or other malware infection, only 1% or less are due to actual hardware problems and failures.
Try this:
Best virus, malware and other infection and system corruption removal for any Windows PC, and future security measures to prevent such infections:
You cannot always safely, effectively and completely remove a virus infection in a Windows environment, as your operating system and antivirus protection can and will get corrupted. Sometimes even your bootsector and master boot record (MBR) gets corrupted, and the computer won't even boot up into Windows anymore.
Go to a different, healthy, non-infected PC or laptop and download both the BitDefender and the Kaspersky Anti-virus Recovery CD's (free downloads).
Download links for both:
http://download.bitdefender.com/rescue_cd/
http://support.kaspersky.com/viruses/rescuedisk
Burn both downloaded iso files to CD with an iso burner software. If you do not have an iso burning software installed, I recommend getting the CDBurnerXP (free software) from here:
http://cdburnerxp.se/
Once you burned the recovery CD's, return to the infected computer and put the BitDefender Anti-virus Recovery CD in your CD/DVD drive and boot from CD (set your boot up options in BIOS to CD boot as first option if it does not boot from CD at first)
Once your infected computer boots into the Recovery CD Linux environment, first update the virus definition database from the Internet server, than perform a complete scan of your desktop computer or laptop (all hard drives and/or partitions). Remove (delete) any infections found, and shut down your desktop computer or laptop.
Remove the BitDefender Anti-virus Recovery CD and insert the Kaspersky Anti-virus Recovery CD.
Repeat the same procedure as for BitDefender above.
After scanning with those 2 Anti-virus Recovery CD's, your system should be virus free, and will function properly again.
You might also need to do a master boot record (MBR) repair on your system, if your MBR also got corrupted.
Download the Windows 7 or Vista System Recovery Discs (according to what you got), $9.75 here:
http://neosmart.net/blog/2009/windows-7-system-repair-discs/
Burn the ISO to a CD, boot from it and repair your MBR.
Or, with a little computer knowledge, you can create your own System Recovery Disc from an existing installation of Windows, read here:
http://windows.microsoft.com/en-US/windows7/Create-a-system-repair-disc
Also, for future use, take all the security measures bellow:
Use a good antivirus program, on at all times in active, live protection mode.
Best pay antivirus programs are BitDefender or ESET Nod32.
The best free antivirus programs are Avast and Avira AntiVir.
Also install MalwareBytes, at least the free version (offers added protection against malware, spyware, adware and rootkits, also against some viruses and Trojans).
As stated above, Microsoft Windows Firewall sucks.
You will also need a good Firewall to protect your system from attacks.
First test your Windows Firewall with this little leak test utility:
http://www.grc.com/lt/leaktest.htm
You will see that it will penetrate your Microsoft Windows Firewall.
Install Zone Alarm or Comodo Firewall (both are free). Zone Alarm is by far the best firewall.
http://www.zonealarm.com/security/en-us/trialpay-za-signup.htm
Rerun the Firewall leak test and you will see that it cannot not penetrate Zone Alarm or Comodo, you will get a prompt asking if you allow communication or not, just choose NOT. Your system is not protected by a solid Firewall.
Install CCleaner to clean your registry keys and other unwanted stuff.
http://www.piriform.com/ccleaner/download/standard
For your web browser, use either Firefox Mozilla, Google Chrome or Opera.
DO NOT USE INTERNET EXPLORER (IE), as it is the worst browser, and it can be easily attacked, infected and corrupted.
Also install the WOT (Web of Trust) addon tool to all your browsers. It rates all websites, blocks access and also alerts you when you open an unsafe website, thus preventing any internet attack or virus infection.
http://www.mywot.com/
For media players:
Use either WinAmp, Songbird or Media Jukebox for audio files. DO NOT use iTunes, that Apple (Mac) crap sucks even more than any Microsoft crap.
Use either VLC Media Player or GOM Player. Both of them would play anything without the need of any codecs, even damaged and incomplete video files.
Other options would be (in this order) Daum PotPlayer, KMPlayer, Kantaris Media Player, SPlayer, SMPlayer, and MPlayer. All are free to download and use.
Good luck.
Source(s):
Happy and worry free Linux user (the guys that usually create the viruses - lool). Also Windows fixer for other less fortunate people.