Uninstall OS from dual boot

[MonkeyMayhem]

I have both ubuntu and windows xp installed on my desktop. I now want to remove windows xp and do a fresh install. How do I remove windows xp first from the dual boot option.

[lisati]

If you're doing a fresh install of Ubuntu, then telling the installer to use the entire disk will wipe EVERYTHING from your hard disk, including Windows.

IMPORTANT: make sure you make a backup of important data (including recovery partitions) first.

[MonkeyMayhem]

Actually I want to keep ubuntu as is and do a fresh install of windows xp. sorry if i wasn't too clear about it in the previous message.

[zvacet]

After you do fresh install of XP you will have to reinstall grub. (http://members.iinet.net.au/~herman546/p15.html#Re-install_Grub_with_Live_CD)