Okay so a few weeks ago I got Antivirus XP(a virus) on my computer, while having SpySweeper and Trend Antivirus. So I took it to Geek Squad and they had to put in a new hard drive. But now I got a couple more( and no there have been no porn sites). I ran the sweeps and it said it took out 4 Trojan viruses, but I cant eject any usb ports and also cant exit out of MSN Messenger(which I can't uninstall from the new hardrive), also when I click on a google link it takes me to a random page with ads.
Any help is much appreciated thanks.
This is pure speculation on my part, but...
Was there some mechanical issue with the hard drive? The reason I ask is that the problems you describe are not sufficient to install a new drive. You simply format it - or alternatively, destroy the partition and re-create it - and do a clean install.
I'm wondering if the "expert" didn't really know what he was doing, and simply imaged your drive, slapped in a new one, and restored the image. If he did, then all he did was transfer the problem from one drive to another; essentially, he placed back on the new drive whatever backdoor trojan was on the old drive.
Alternatively, the virus could be in your data (documents, etc.), and the guy did a clean install, but failed to check the data he restored, thus restoring the virus to the system (this is much more unlikely, as it would require that you re-execute the file that was infected).
Either way, what I would do is destroy the partition, re-create it, format the drive (a full format, not a quick format), then do a clean install of the operating system and install all updates. Check to make sure the USB ports are working as they should.
Then, reinstall your applications. Run the update for both the anti-virus and the anti-malware, and then run full scans of both - they should come back completely clean at that point.
Finally, restore your data from backups, and immediately re-run your anti-virus and anti-malware scans. I'm betting that everything will be fine after that.