CNET

Boot Camp Special Report: Problems installing over previous "Bootloader" hack -- solution

If you previously attempted to install the popular Windows XP "Bootloader" hack, you may not be able to apply to firmware update required for using Apple's newly ...
CNET

Firmware update (required for installing Boot Camp) will not install if previous Windows XP ...

It appears that if you previously attempted to install the popular Windows XP "Bootloader" hack, you will not be able to apply to firmware update required for using ...