Parallels versus SP3

I updated BootCamp recently and it allowed me to update Windows XP with Service Pack 3 (SP3). Today, I'm catching up with Parallels. I updated the Parallels Desktop app, but when I tried to start the virtual machine, Windows complained about not being able to find "autochk" and it looked like it continually tried to restart Windows.

Google found this answer for me:

I had the same problem with my bootcamp install after updating to SP3 with the missing AUTOCHK and BSOD. I fixed it by opening the hard disk config for the VM, go to the advanced page and clear the parallels info from the boot camp partition (there is a CLEAR button there for this) and when it finishes boot it up. Parallels will show the message about this being the first time using the boot camp partition you can hit ok and everything should boot up like you had it before. I didn't even have to reinstall tools and coherence was even still working. :)