Update - ran AVG in Safe Mode (could not run in Normal). I also disabled suspicious looking executables running from the temp directory from the Msconfig startup tab. Now Windows won't start up at all - upon log in it notifies me that "An unauthorized change was made to Windows." I can "Learn more online" or "Close." Upon clicking Close it logs me out. Before I was able to bypass that by using the Last Known Good startup. But it doesn't work now. This thing is nasty.