Well have you got an anti virus program? If you have then scan for viruses using that. You can also use:
http://onecare.live.com/site/en-gb/default.htm
This is an online virus scanner made by Microsoft, it is free to use. Click Full System Scan and install it and follow the instructions and make sure you click complete scan, this will then scan your whole computer. Please note that the scan can take several hours and will slow down your computer, my suggestion is that you close everything down and just leave your computer while it scans. Ok so about the virus scanner, this virus scanner also scans for spyware and gets rid of those as well. It also cleans your computer registry, does a disc cleanup, disk fragmentation. Once the scan has finished it will say if you want to remove the viruses etc of what it has found tick the boxes, also tick the box if it says can it do a disc fragmentation. Please note i am doing this off the top of my head as i cannot see the ending, but it should be easy to follow.
You can also try this free spyware program which scans your computer for spyware and removes it.
http://lavasoft.com/single/trialpay.php
Click the Ad-aware 2007 FREE edition, download it, and then scan your computer for spyware.
Hope this helped.
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Click once a day click click click :) :) - minicity :)
I am not dannay