Hello! Today, my computer got infected by sirefef. I have a sneaking feeling it was attached to this Gamestop app that I downloaded today, but the source doesn't really matter. I've tried the instructions detailed here: http://malwaretips.com/Thread-How-to-completely-remove-ZeroAccess-Sirefef-rootkit-Removal-Guide but Windows Security Essentials is still saying there's traces of sirefef in my computer. Not as much as there was before, but it's still there. Help please? This computer is relatively new and I don't want anything bad happening to it already. I'm running Windows 7 x64-bit. I don't have the installation disk to Windows; the computer came with it pre-installed and they didn't give me a Windows 7 disk.