I reinstalled my windows xp professional. When the computer boots, it asks me which operating system to start from? I always pick the first one because it is the reinstalled xp. How can I get rid of it asking me that questions? This happened to me before but I forget how to do it.

Have I got a link for you:
http://www.cyberwalker.net/faqs/reinstall-reformat-winxp/two-copies-xp.html

Cheers.