Hello, i'm Mandy, now i will explain who to preotect your computer after a virus or trojan have ben instaled in your computer.
Firts: Go to start menu, click Run, write "msconfig"
Second: Click in "Startup programs", click in disable all, apply and okay (and restart the computer)
(with that you did with the virus were temporarily disabled.)
Now you'll delete the virus, our another spy programs keylogger for exemple.
go to this link, and download the program "ComboFix".
(Writes: Download ComboFix in Google)
Follow the instructions of the Programme, it will remove any malicious progam for your machine.
If you want to save a program that has run like a virus, put them in a folder. "RAR", so they won't be excluded
Any problems, post below, I'll help.