EDIT: Problem successfully solved! Many thanks to the GBAtemp Members that have helped me! Warning: Spoilers inside! Okay, so right when I restarted my computer because it was going all slow, there was a new program called "Security Tool" when I didn't really install it. I think I installed it from a stupid website that included Trojans. I didn't know that it was part of that website...and it said something about Google Chrome Security, so I decided to press OK. NOW IT'S STUCK ON MY COMPUTER. I can't access my Anti-Virus (AVG) or Google Chrome or Windows Defender. It says that most of the things I have are infected, when they really aren't...How can I get rid of this thing? I'm using Window Vista 32 bit. When I try to open taskmgr.exe, it says that it's infected and immediately closes. I don't have any System Recovery Disk/CD whatsoever. PLEASE, I NEED HELP. I can't afford to buy another computer! And every once in a while, 20 seconds or so, it pops up with things like "taskmgr.exe is infected, click to remove infections!". I NEED TO GET THIS THING OFF. Many thanks for helping. Quick replies please.