5 Classic Computer Pranks. By CC Holland. Updated on: May 30, 2008 / 11:45 AM ... offers a Blue Screen of Death screensaver that is sure to sprout some gray hairs on your victim's head.

Short of ideas for practical jokes to play on colleagues and friends on April Fools' Day? Simple: mess with their computers. But don't worry, they're all harmless pranks and are easy to undo.

Brian Quinn, from left, Joe Gatto, Sal Vulcano and James Murray attend the premiere of “Impractical Jokers: The Movie” at AMC Lincoln Square on Tuesday, Feb. 18, 2020, in New York.