Nasty Trojan - need help removing

Hi.
I have a bad trojan, or cumulation of trojans, spyware, adware and worms on my computer that I believe was caused by a single source which I have yet to identify. Three things have happened in the time between when my computer was fine and when it went haywire.

1. I moved my computer to a different house. Different network, different router, may have not been firewalled and my comp. didn't have windows firewall enabled.

2. I installed a copy of a game.

3. The newest episode of Top Gear finished downloading.


The problems started right after the third event. My problems are as follows:


Popups in my system tray - saying things like "Spyware detected" and "Your computer is infected with spyware". Clicking on the bubble leads to the webpage windows-privacy-protection.com, which I've found in my research is part of a takeover program

I have new files in my C:\Windows directory. (systeem, systemcritical, rundll16, etc.) When deleted they replace themselves within a minute, meaning another program is running that won't let them go. Also have a file/folder called "fun" in my C:\Windows\System directory.

I can't install certain new programs because my computer says I don't have admin. privileges.

I can't access my task manager because it says "Task manager has been disabled by your administrator."

Fake anti-virus program windows pop up occasionally.

My comp. has blue-screened once (mem dump) but I suspect it was a fake...?(I pressed ESC, went back to desktop)

My display adapter is screwed up. (bad resolution)

My desktop background has been changed to something like (your computer is at risk, bla bla bla, I can't read it because of the bad resolution)

So far I've taken these steps:

Tried to edit my registry to regain access to the task manager. (failed)
Tried finding and deleting the files I knew were bad. (failed)
Tried a couple of "free" spy sweepers, one (SpyHunter) came up with quite a few malicious items, but of course wouldn't remove them for me.
Rebooted in Safe Mode, wash rinse repeat, all symptoms are still present.
Downloaded and tried out a program called Autoruns, no luck with that either.



Any help with this would be greatly appreciated. I would like to avoid completely wiping my computer and reinstalling as it's a real pain. Thank you in advance.