Download
CWShredder and run it. Click on 'I Agree' button if you agree with it. Click on 'Fix' (it will automatically fix anything it finds for you) and OK. If it asks if you want to delete a certain random file, choose No and post that filename here. Let it finish the scan and then hit Next and Exit.
Download and install
Spybot S&D. Run Spybot and click on the 'Search for Updates' button. Install any updates that are available. Next click on the 'Check for Problems' button. Let it run the scan. If it finds something, check all those in RED and hit the
Fix Selected Problems button. Exit Spybot.
Please download
HijackThis - this program will help us determine if there are any spyware/malware on your computer. Create a folder at C:\HJT and move HijackThis.exe there. Double click on the program to run it.
1. If it gives you an intro screen, just choose 'Do a system scan and save a logfile'.
2. If you don't get the intro screen, just hit Scan and then click on Save log
and post it here. Do not fix anything in HijackThis since they may be harmless.