Malware

I wouldn't really recommend forking out to what the big computer stores recommend because they are usually really expensive and as others had said i would get avast

 

Stick it in the microwave for 15 minutes that should solve all your problems

 

It both cleans your computer, and warms up your data!
*Data loss is no responsibility of any of us if you are thick enough to put a computer in a microwave

 

Let that be a warning to me to not try out russian mods...