when i get on my start up windows screen i cannot press on anything or click on anything, it only starts working when i press contro0l alt and del, and after- windows task manager, then i press diff tabs like networking etc, then i exit that and i can work my computer normal, i already tried to do the system restore etc, is it a virus, cause that happened a few weeks befroe my other comp crashed, already ran virsu scans, but cant find nothin, helppppppppppppppp please