While holding down the right Ctrl key, press Scroll Lock twice, and Windows will blue screen with the following message:
*** STOP: 0x000000E2 (0x00000000, 0x00000000, 0x00000000, 0x00000000).
This isn't a bug — it's actually a feature of Windows, yes, a feature to enter the infamous blue screen. Although Windows isn't particularly known for its stability, especially during the XP and Vista eras, not everyone has had the chance to witness the famous blue screen error.