A couple basics you can do..
1. Go to your control panel, add/remove programs, and see if you can find any programs that you did not install and you know are not part of your computers preinstalled software. If you do try and uninstall them.
2. Run a Anti Virus Scan and try to clean/delete anything on there. ( See below if you dont have an antivirus) If that resolves it do not continue on.
3. If you dont have any important *programs* that you installed AFTER getting this virus you can do a system restore. Note that word documents etc. will not be deleted.
To do this..
1.Go to start, all programs,accesories. system tools, system restore.
2. Click on restore my computer to an earlier time.
3. Click on a BOLDED date closest to the time before you got the virus.
4. Click ok/restore.
Note: I am assuming you are using windows XP. To undo this restoration if you see it did not help, repeat step one and click on undo my last restoration.
4. Clean ALL internet cookies, cache, and temporary internet files.
5. Download and install a copy of McAfee Firewall and VirusScanfor a full 30 days. Use those to help secure your system for that month. If you see it has done a good job, you should go ahead and buy the security suite which will protect you. For a basic scan from McAfee without a download click on the link below.
6. I also reccomend you download a free copy of TweakNow RegCleaner and CCleaner to get rid of trash from your registry that may be there. Links are also below.
I've included some other tools you may find useful.
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McAfee Anti Virus
http://us.mcafee.com/root/mfs/default.aspAVG Anti Virus
http://www.download.com/AVG-Anti-Virus-Fre...tml?tag=lst-0-2TweakNow RegCleaner
http://www.download.com/TweakNow-RegCleane...tml?tag=lst-0-2CCleaner(Crap Cleaner)
http://www.download.com/CCleaner/3000-2144...tml?tag=lst-0-1Spybot - Search and Destroy
http://www.download.com/Spybot-Search-Dest...tml?tag=lst-0-1Microsoft Windows Defender ( Beta 2 )
http://www.download.com/Microsoft-Windows-...tml?tag=lst-0-1I hope I was able to help.
{Edit By LS CalamityJane to remove email address}