You would be advised to run Ad Aware and / or Spybot to remove any existing spyware, then install Spyware Blaster to prevent any more. Spybot and Spyware Blaster both contain IE Home Page guards, and are free. You can get them from the links below. You may have to run the above programs in Safe Mode, with System Restore temporarily disabled, if you have spyware embedded deep in your system. Ad AwareSpybot S&DSpyware Blaster