Hi! What your computer has is a case of Adware. You usually know you have adware by having alot of pop-up ads all over your screen, and having many toolbars in Internet Explorer. It isn't a virus. You usually get adware by downloading something from a untrustworthy site. Try using a free spyware/adware removing program Spybot S&D or Ad-Aware. They are as good (or maybe even better) than ones you can buy in the store. Scan your computer and remove whatever they find. Try restarting your computer afterward.

I'm not a mod here, so this is just basic advice. Just wait abit for some help as it seems theres a huge amount of problems here.