Oh Dear God.

[_PyroManXx_]

Have you tried booting to an external hard drive using a free operating system, and wiping your main hard drive? The biggest problem of all here is that you're using Windows Vista, an older, slower, and it just sucks. If you can, try to upgrade to windows 7. I'd reccomend going with the home edition, since you might not need everything the professional version comes with.