How To: Upgraded to Parallels 5, Got BSOD IRQL_NOT_LESS_OR_EQUAL

After upgrade from Parallels Desktop version 4 to version 5 Windows XP virtual machine fails to boot. IRQL_NOT_LESS_OR_EQUAL Blue Screen of Death is displayed. Reason: The IRQL_NOT_LESS_OR_EQUAL BSOD (Blue Screen of Death) happens due to multiple CPUs assigned to the virtual machine. The Fix: Decrease the amount of CPUs to 1: [code] Shut down your […]