How do I Cancel a Windows XP VL install?

Hello,

I have accidentally tried to install a VL (volume licence) copy of Windows XP on a laptop. I have a MSDN subscription and have access to download it, but do not have access to a key. I do not want to jump through hoops to get our administrator to supply a key. I have 10 free keys through my subscription. How do I cancel my VL install, reformat, and reinstall a regular copy of windows XP?

I have tried rebooting in Safe Mode which gives me an error message that says something like “Safemode cannot continue install”. I have tried rebooting from an XP cd, but it immediately attempts to continue the windows XP VL setup.

Any suggestions?