okaay look i've already said what to do to fix it.
Just simply re-install using SAFE MODE.
If you dont know how to use it, then ill tell you.
I only know how to use safe mode in win7, because it's what i running.
Just type in msconfig in the search bar, then click okay.
Click "boot" bar at the top, then click safe boot. When you click it, your comp should check minimal for you. Leave it at that.
Click apply, then okay. Your comp will ask you for re-booting, click yes. If it doesnt, then just re-boot your comp yourself primarily.
BTW, re-boot=restart your computer/laptop.