Here is some helpful advise my brother sent me:
First, download Combofix at http://www.combofix.org. After installing, you will want to reboot your computer into SafeMode and run ComboFix. Be sure to follow their directive about stopping any anti-virus/anti-spyware software before you run ComboFix.
Next, download and run CCleaner at http://www.piriform.com/ccleaner.
Then, you will want to install, update, and run MS Security Essentials. You can download at http://microsoft.com/security_essentials.
Your computer should run must faster after following these steps. Don't forget to run CCleaner at least once a week.
