Recently my avast has detected a pair of viruses in a file deep in my appdata more specifically the file C:\Users\My username\AppData\Local\Microsoft\Windows . I can't find a file inside it that is infected and scanning each individual file inside it doesn't find a virus only when I scan the file itself. Avast states that it can't deal with the viruses by moving to chest deleting etc. I'm not sure what to do now is it safe to delete the entire windows file is there some cleaner I have to download to get rid of the viruses inside. I hope this isn't a thread I should write elsewhere.