My windows media player isn't working - what to do?

Use System Restore to go back to when it worked, then put a Admin pword on your account to prevent dad from getting on it at all. All you have to do to do both of those is to open Start and search by System Restore and Administrator Pword. They will guide you from there. If the same problem persists you may have a virus. I recommend downloading Spybot Search and Destroy. It's completely free and I've been using it for years. It removes tracking cookies, spybots, and harmful viruses. I DON'T recommend installing Norton ever, and if you have it already get Mcafee instead.