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Prank Your Friends
Launch a convincing fake Windows or Mac update screen on someone's computer for a harmless laugh.
Fake OS Update Screen
Simulate realistic system update screens for any OS — perfect for pranks, demonstrations, and theatrical purposes.
Windows 11 Update Preview
Click to launch fullscreen
What Are Fake OS Update Screens?
Fake OS update screens are realistic simulations of system update interfaces for popular operating systems. They're widely used for harmless pranks, IT demonstrations, theatrical productions, and educational purposes.
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Film & Theatre
Need a realistic computer screen for a film scene or stage production? Our simulator is pixel-perfect.
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IT Training
Demonstrate what a real OS update looks like to students or non-technical users in a safe environment.
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Adjustable Speed
Control how fast the progress bar moves — from painfully slow to instant completion.
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7 OS Simulated
Windows 11, 10, XP, macOS, Ubuntu Linux, Android, and Chrome OS — all pixel-accurate.
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100% Safe & Free
Runs entirely in your browser. No downloads, no installs, no data collected. Completely harmless.
Frequently Asked Questions
Is this fake update screen harmful?
No. This is a purely visual simulation running in your browser. It does not modify any system files, install anything, or affect your computer in any way. Press Esc at any time to exit.
How do I exit the fake update screen?
Press the Esc key, move your mouse to reveal the exit hint, or press Ctrl+W to close the tab. The simulation stops immediately.
Which operating systems are supported?
We support Windows 11, Windows 10, Windows XP, macOS / OS X, Ubuntu Linux 22.04, Android, and Chrome OS — all with pixel-accurate update screen simulations.
Can I customize the update message?
Yes! Use the Custom Message field to enter any text you want displayed on the update screen. You can also set the starting percentage and adjust the update speed.