Alright, i've had problems with viruses but fortunatly I got rid of them. Unfirtunatly every so often I come across a file missing from my computer like autoplay.exe and gpedit.msc which tend to be knida important in what i'm trying to do at the time.

So heres my question: does anyone know how to get these files back without re-installing windows? Is there somewhere I could download them then reinstall them?