Apparently I need to whipe Linux off my hard drive before I can install Windows XP. I can't believe it, but I don't know how to format this hard drive!
Here's what I did:
I made a DOS boot disk (floppy).
I booted to it and typed the command "format C: /s" and it said C: is an invalid directory! :^(
So I got these instructions from Microsoft and tried that. Their instructions are weird, because the Fdisk utility actually works nothing like they describe (you always enter numbers to make the program respond, pressing "p" or any other letter that the guide says will actually do nothing at all).
But I still used the fdisk utility to delete both partitions it recognized on my disk (it said it deleted them). Then I rebooted my computer, and Linux started up as usual. Nothing had changed.
I formatted the hard drive using the Fedora Core 5 install disc then hit Ctrl+Alt+Del as soon as it started installing files. But I still can't install Windows and when I boot to my hard drive, something called Grub opens.
So now I guess I need to know how to COMPLETELY uninstall Linux.