Write a virus that will un-install Internet Explorer (your know who you are) and replace it with Firefox.

How I did it: check this website for the code on deleting files in visual basic... http://msdn.microsoft.com/en-US/library/tdx72k4b(v=vs.80).create a app that auto runs on startup.wrap app into a installation that installs file in start up folder....user reboots computer...file auto opens deletes internet explorer, then closes without user knowing...u asked for a virus so wrap the app into firefox install so when you install firefox it automatically d… Read how I did it…