How do I uninstall Windows XP SP3 Release Candidate?
All you have to do is open a Run dialog box type appwiz.cpl, and then press Enter. Alternatively, you can make your way via Control Panel to Add or Remove Programs. Here you will have to identify XP SP3 (936929), and then hit Remove. The machine will have to be restarted in order for the uninstall to be completed. But even with a restart users should know that it will take Windows up to one hour before the service pack will be completely removed.