There is a registry hack that allows you to make Windows Vista crash to a blue screen of death whenever you want.
1. Hold down the Windows Key and press R. Type REGEDIT.
2. Click the plus sign next to HKEY_LOCAL_MACHINE
then click Parameters
3. Double-click on CrashOnCtrlScroll and set the value to 1 to enable this feature.
Restart the computer. Now when you hold down the CTRL key and press the SCROLL LOCK key two times, Windows Vista will automatically crash to a BSOD.
An alternate way to make Vista crash would be to simply use Windows Vista.