Alright, I've had my computer for about a year now. A few months ago, i got a virus from Limewire(or at least i think its a virus?), that as long as my computer was on, it would pop-open Limewire. I uninstalled Limewire, and it still tried popping it up, but instead would give a Java error. I noticed in the TaskManager for Applications, it was Setup.exe, which i End-Task'ed. Then I'd End-Task the limewire process, so not much of a problem there.
Either this Thursday or Friday i got a really annoying virus. Usually I use MSN for chatting. My friend sent me a message that was like "Hey is this you? [link to jpg file here]"(not sure on the wording). Clicked on the link. The image downloaded some sort of MS-DOS thing(judging by the icon of it) onto my computer. (Little hesitant, but...) I clicked it. Then, some visualbasic window opened up, my MSN buddy list unminimized, and started sending the same message i had received from my friend, to all my online buddies. Zomg
I checked my Processes and i found some names of loadadv64.exe, Updater.exe, and winstall.exe. Located these, found their folders, and tried deleting. Turns out it didn't work, and i heard from my friend its a rootkit. So...I'm basically lost, and i need some help >_< None of my antivirus stuff works anymore, all of it has expired.
What do I do?!