While I was on a business trip, somebody got my computer infected it seems. I first knew something was wrong when the the sound kept going out and I had to reset the sound settings to get the sound back on on. Since, other things were happening, including a pop-up, messages about wanting to make IE my default browser, etc. My computer has AVG Anti-Virus (Free Version 8, I'll be upgrading ASAP), and on three separate scans it found infections, including Trojan house Clicker.AJUP, Tracking cooking.Trafficmp, Tracking cooking.Overture, Virus FakeAlert, and the latest on separate scans Trojan horse Downloader.Tiny.BB.
It seems there must be something lodged in the computer that's bringing about these infections, but I don't know where to start looking for it. At this point, I'm a bit afraid to turn that bleeping computer on (I'm using a different laptop). If anyone can get me started on this, I'd really appreciate it.
For the record, that computer is running Windows XP.