bing is the search engine by Microsoft - it isn't a program you need to install or uninstall.

If you can give more info we can help better.
But the links below might be what you need.

What browser are you using - IE8?
What version of windows - XP, Vista, win 7?

do you want to change the home page from bing to something else?
If so - to what Google, another search engine or some other website?

How to change browser search provider -
http://websearch.about.com/od/search...y/qt/qt429.htm

http://www.ehow.com/how_5738656_chan...vider-ie8.html

How to make Home page changes - this is the first page that shows when you open your browser to go online.

http://browsers.about.com/od/interne...e8homepage.htm

a video about how to change home pages-
http://www.bing.com/videos/watch/vid...R5&FORM=LKVR10