1. Download and install http://www.filehippo.com/download_firefox/8900/ - Make default browser when prompted
  2. In Firefox,
  3. Download and install http://www.filehippo.com/download_flashplayer_firefox/
  4. Download and install http://www.filehippo.com/download_security_essentials_vista/
  5. Restart if prompted, run Security Essentials and update virus database then perform a system scan