Run CCCleaner.(only removes it if he got it in through cookies/temp files, cleans up your pc anyay so id recommend running it no matter what, doesnt even matter if you do have a virus or not)
Run Malware Bytes Anti Malware (free, but premium codes are free here: https://www.mpgh.net/forum/2-general/...yts-codes.html ) (run full scan with this before doing anythong else I recommend)
Task manager-> Proccesses -> Show all processes and find unusual ones and post them here. (Do this 2nd, cccleaner doesnt specialize in virusses but its more of a l
Ucky shot, since the virus might be in the files it cleans)
That should do the job for now, Malware bytes will probably clean it up already so do a full scan with that before trying the other 2 options