installing a new operating system
 

How do you remove everything from your computer then put in a new operating system. I have winxp pro on CD. I basically want to erase all its memory and start from scratch then install winxp pro from the cd.

Boot It from the Cd and it will give u options Select Clean installl
Then Delete the pertion Xp is on atm and remake it install Xp over it and there u go :)

What?

He meant "partition", but that will delete everything on it and not just WinXP (which is what you want, I think. Correct?)

Getting rid of just WinXP is basically impossible. The easiest thing would be to copy everything but WinXP to another drive and then reformat the drive with WinXP on it (the installer should give you that option, no idea though, since I've never used/installed WinXP, only Win2k).

I'm not trying to get rid of winxp, im trying to get rid of my old system windows nt (something) and removing all the memory from it and booting it back up with winxp.

With windows xp its easy. pop the cd in. Reboot, let it load. follow the onscreen instructions.