Though AFAIK PrevX is the best. Finds everything. No crack though. Avira Premium Security suite with the free 6 month serial is great for realtime protection
hey if ur problem is not solved u can boot in safe mode and try to delete it.don't search it,just tick show hidden files.and directly go to the location &delete it manually or use feature fileassassin in malwarebytes.!!!!!hope it helps