Avast causes blue screen of deaths on my computer, I'd like to write something about my experience to inform others and inform Avast over the problem.
I'm running Windows 7, 64-bit.
This is how it happened:
Last Friday I tried to download a version of fraps from usenet, I didn't have a correct download and I suspected it to be a virus. At this moment I had my computer with ±200GB of downloads with no virus scanner at all, so I downloaded Avast and Mal warebytes to do a good scan.
I downloaded Avast from here: http://www.avast.com/free-antivirus-download
After I scanned with both programs things started to go wrong, I started to get blue screen of deaths. I didn't know where it came from and I suspected a virus which wasn't detected by any of these programs. Therefore I did a boot scan which avast, which was recommended but it didn't find any additional threats.
At this point I had no idea what was going on and I decided to reinstall windows 7 64-bit on my computer. All the junk would be off and it would clean up my computer again.
After I did this I immediately downloaded Avast again so I had "good" protection. After downloaded Avast I also did a scan, it found 7 threats. I didn't know how this was possible because at this point in time I didn't download anything which could have given me a virus (unless you think the following programs/downloads can give me a virus: ati drivers, firefox, winrar). Avast wasn't able to restore it or move it to the vault so I choose to delete those threats.
After I did this the problems started again, I had a few blue screen of deaths. Not suspecting Avast at this time I looked at my hardware, I have 4 strips for 1GB ram in my computer and I hold all but one out and looked if the bsod would come back. After I had bsod I switched them, I found that which each ram strip the blue screen of death would occur. At this point I figured that there was no way all 4 of my ram strips would've gone broken so I concluded that it was Avast.
What I did next was remove Avast, but this didn't work. I kept getting bsod, I had no idea what could be wrong but then I remembered that Avast did delete 7 "threats". I concluded that Avast surely had deleted a file out of those 7 which could have caused this, I choose to reinstall windows 7 64-bit AGAIN!
Now that I have reinstalled windows 7 64-bit again I have not have any bsod (where I ussually would've had around 10 at this point), the only thing that changed is that at this new install I am NOT running Avast but AVG.
I find this enough evidence to conclude that Avast caused the blue screen of deaths on my computer and I'll not install it ever again.
I hope this helped, this was purely for information purposes only I haven't got anything against Avast nor am I trying to make a commercial for Malwarebytes or AVG.
a disappointed user.