First, install a Pop up blocker, your best one would be to download
http://pack.google.com, install the google tool bar with pop up blocker, and then install Adaware and run it...
then search the web for Spybot S&D run that as well....
best advice before hand is go to your browser setttings and clear ALL cookies, History and temp files.
I would also recommend doing a Clean Disc function before running the tools. This will minimize the time it takes to run.