BootCamp Error Fixed by Custom BootCamp Configuration The Custon BootCamp Configuration fixed the problem that BootCamp Windows cannot be started in Parallels. It took a few trials, but BootCamp windows eventually started. People had the same problem in an earlier release. The configuration procedure is on this page. http://forum.parallels.com/post42129-1.html My BootCamp partition worked before the upgrade, and there are no multiple partitions on it. Maybe this could be ironed out in the next release, or a solution to this error message be listed in the manual. Thanks.