I've always been extremely careful to not get a virus, but a family member of mine who doesn't know too much about computers somehow got a virus called "System Tool2011." (He thinks it posed as a Google Earth update). I found this thread: http://forums.malwarebytes.org/index.php?showtopic=66064, and am following the instructions, but I don't know anything about viruses so I'm wondering: 1. Is there any way to know if the program was able to steal information, like financial documents or passwords? 2. After following the guide I linked to above, is it REALLY completely gone? Or should I reinstall Windows? 3. I know that some viruses can actually infect personal files and then move to other computers, or come back later, and so forth. Is that the case with this virus? I'm kind of freaked out about this, as I have no experience with this. I would really appreciate any advice you might have I couldn't get mb installed following the instructions in the guide, system tool wouldn't allow the installer to run. So I started the computer in safe mode and installed it, then started into normal mode, renamed the program executable to iexplore.exe and was able to run it. It didn't find any problems, even though the system tool window was running right next to it! What should I do?