I had an ASUS with Win-7 which was plagued with viruses and I couldn't figure out what was going on. It had gotten so slow, so I but a new HP with Windows-8 which was slower than my last computer out the box. My computer came with a Norton trial. Yesterday, it was mysteriously disabled along with Windows Defender. So I downloaded Advanced System Care which was also mysteriously disabled. I went into safe mode and downloaded Spy Hunter 4 which I thought was free but isn't. It said I had 353 threats. Some of these threats: Hijack the browser and takes over your search engine; repeatedly bug you with ads; track your PERSONAL INFO and browser habits; spam you and add toolbars; and give your information away to other companies! I'm 19 so I don't have a bank account or credit cards to fully purchase the software to remove them. So I would like to know are there any good anti-virus software for free that actually shows threats, because most of them lie and show absolutely nothing. Help will be appreciated. Thanks!!!