Fake Windows Update
The fake Windows update prank shows a picture-perfect "Working on updates" screen that creeps up the percentage and never finishes. Open it on a Windows PC, press F11 for fullscreen, and leave it running — they'll sit there staring at it wondering why the update won't end.
Press F11 for maximum realism. Tap or press Esc to exit.
Installed the crack fills the entire screen — no browser bar, no tabs, no giveaway.
How to use the fake windows update prank
- Tap Launch Full-Screen Prank above (or press F11 once it's running).
- Leave the device where your victim will find it. It'll look completely real.
- When they panic, tap the screen or press Esc to reveal it was a joke.
For laughs only. Nothing here installs, downloads or damages anything — it's all harmless CSS/JS in the browser. It's a staple of April Fools' Day pranks and works any day of the year. Just keep it kind — see what makes a good prank.
Frequently asked questions
Is this a real Windows update?
No — nothing is being downloaded or installed. It's just a full-screen web page that mimics the Windows update screen. Close the tab and the "update" vanishes.
How do I make a fake Windows update screen?
Open this page on the PC you want to prank, press F11 to hide the browser bar, then walk away. The gag auto-plays the "Working on updates" screen with a creeping percentage.
How do you get out of the fake update?
Press Esc or F11 to exit fullscreen, then close the tab. Nothing has changed on the computer.
Does the percentage ever reach 100%?
On purpose, no — it creeps to about 99% and stalls, so the "update" appears frozen (the most maddening bit of the real Windows update experience).