Re: Computer Speed Test
CCleaner. Remove StartUp programs and unknown Services.
Edit: You should not trust a website to prod and probe your computer. You have no idea on how much access your giving and to who. There's probably some disclaimer on their site somewhere as well that they mine personal information. Maybe not, but I still wouldn't trust a site that anyone can setup that promise free computer diagnostics.
Humans are the only creatures that won't live up to the their potential. Give everything your all. When you die, die on E.
So I ask you, what do you intend to do now?