I have written a guide for next week that explains running tasks as an administrator in Windows XP. Just like modern cars (some, not all) don’t fully turn off the traction control even when you press the switch, modern versions (including XP) don’t give you full administrative permissions (even with an Administrator account.) Thus, you’ll need to activate the “hidden” administrator account in Windows to have full control over your files and settings.
Please note: Only activate and use this account if you have a need to do so (i.e. tinkering with system files on a non-critical PC.)
Learn, in this guide, how to activate the hidden administrator account in Windows XP (Instructions for Windows Vista/7.)