After updating Boot Camp from v2.2 to v3.0, you may receive a 2727 error or “restart pending” error while booted in Windows. Apparently this is caused by the Boot Camp update not getting applied properly. The fix is to uninstall then reinstall the Boot Camp Services in Windows. Instructions for doing so are posted to in Apple’s Knowledgebase article TS3225. http://support.apple.com/kb/TS3225