Hi, My computer was working fine until one day I foolishly installed the Megaupload toolbar. Within a few minutes, I found out it was harmful and so uninstalled it. However, when I hibernated the system, the normal black screen which shows the Hibernation Progress was messed up with randomly coloured pixels and numbers, and then the computer froze. So I followed all the instructions in the sticky thread in the Security Area to remove all malware. However, it seems that installing all that software and performing all those various tools and tests messed up my computer even more. * During installation of Spybot SD, the application kept hanging, and Lavasoft Ad Aware 2007 freezed a couple times during updating. Once on reboot, AVG Antivirus gave an error that there was something missing in the avgcc.exe file. * When I was running spybot in Safe Mode, it worked fine once and fixed the problems. Just to be on the safe side, I performed the scan again, but a little window in the system tray popped up saying "Spybot.exe corrupt file or unreadable. Please do a Chkdisk." Then the system completely crashed. (I've now uninstalled spybot) * While running the Ad Aware 2007 scan in Safe Mode, the system crashed and started rebooting itself. (I had to uninstall Ad aware 2007, reinstall my old Ad aware se personal and then run the scan properly) * AVG antispyware crashed the system again, and once more it turned to Not Responding. Finally, after many tries I managed to do all the scans and stuff. I feel like following these instructions messed things up even more My computer hadn't been crashing or anything before this. And the messed up Hibernation screen which caused me to follow all these instructions hasn't happened again over the past week. Well, here are the Combofix, AVG antispyware and HJT logs. Antirootkit didn't find any infection. I have no idea what's wrong, but I'm thoroughly frustrated with computers now. Any help would be more than appreciated.