While Windows XP is still one of Microsoft’s most popular operating systems, sometimes people will want to remove it to make room for a different OS. When this happens, there are essentially two options for the computer owner. If the version of Windows XP is an upgrade from a previous version of Windows like Windows 95 or 98, then it is a simple matter to just uninstall Windows XP and revert to the older operating system. If, however, no older operating system is present, then the only way to remove Windows XP is to format the hard drive and start over. Writer Bio

How to Uninstall Windows XP Then Boot From a Disc  11 Steps  - 42