- last post: 01.01.0001 12:00 AM PDT
Click the "start" menu.
Select "All Programs" and then "Microsoft Games," then "Halo," and click "Uninstall Halo."
Joking. I really honestly don't see how you could possibly not know how to do this. Start up Halo, click multiplayer, click Host game underneath Internet. It's so easy. Then you just select your gametype, set up the name, password, etc. and then you're done.
[Edited on 12/1/2006]