text: how do i uninstall windows 98 in  a windows xp/windows98 dual boot system? i don't want to format both xp and 98 drives...............but formatting 98 drive is acceptable if you installed both 98 and xp in the same drive, then you will just have to make a backup of your files and delete the whole c:// partition. if you installed them on separate drives, then just delete the partition witht he 98 installed on it.