Geona, Follow the instructions at the link below.
http://www.wellesley.edu/Computing/Netscape/Browsers/pc_ie-n7x.html#ie
Tufenuf
Changed my default browser to Firefox in XP SP2, and have had strange happenings since. For example, Firefox now won't remember the cookies/settings (e.g., language choice for Google) it used to remember perfectly well. This is so no matter to what degree I allow cookies. How do I go back to IE as default? Thanks.
Geona

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic