I don't know how I got them, or why, or where, but I nearly lost my computer because of BloodHound and other varius viruses, which may have come from something toribash related. I really need help on what I should do, because I was being "blackmailed", (the person sends me viruses, and tells me they'll fix it if i pay them a crapload of money). I just kinda need a little idea of why this stuff could be happening...

This stuff could happen because the hackers want to be rich, or just wanna have fun with computers, you could have annoyed this person, but normally they just want the cash.
Anyways, have you scanned your computer yet?

yes, I did the scan and it took like 3 fucking hours...

well at least the viruses are gone now

but that doesnt mean the sender will stop.

Just block the sender if its by email, or get a stronger firewall for your computer
and patch your computer with the new updates

What antivirus are you using?

Norton.

Whenver you download something you can run a scan on that individual file, also i know you know who the viruses are coming from, but are you downloading them, or do they appear. Also you should enable the function that lets you see "hidden" folders. Defragment your machine and don't download from sites or people you don't know or trust..

i recomend avg