A pixel-perfect Apple software update — fullscreen, in your browser. Apple logo · progress bar · minutes remaining · 100% harmless prank.
Installing a software update…
About 14 minutes remaining
⛶ click to fullscreen
Prank
Preset Screens
Background
Caption
Progress
Speed4
"Minutes remaining"
Loop forever
Options
What is this?
This is a pixel-accurate fake macOS software update screen — the white Apple logo, the thin progress bar slowly filling, and the "About 14 minutes remaining" line that every Mac owner dreads. Run it fullscreen and it looks exactly like a Mac mid-update. It is the classic harmless prank: leave it on a friend's unlocked Mac, hit fullscreen, and watch them wait for an update that will never finish.
⚠ This is 100% fake and harmless. It is a normal web page — it does not download, install, change or slow down anything. Press Esc and close the tab to end it instantly.
Preset screens
UpdateThe everyday "Installing a software update…" screen.
Install macOSThe big "Installing macOS…" full upgrade.
Setting UpThe first-boot "Setting up your Mac…" screen.
Space GrayThe same layout on a dark gray background.
How to use it
Pick a caption and background, then click Enter Fullscreen (or click the screen). The fake update fills the whole display. Move the mouse to reveal the exit button, or press Escape to leave. The progress bar climbs on its own and, with Loop forever on, restarts at 0% so it never completes — just like a Mac stuck on an update.
Keyboard shortcuts
FToggle fullscreenSpacePause / resume progressRReset to defaults1–4Switch preset screenEscExit fullscreen
Related searches
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▸ Frequently Asked Questions
FAQ — Fake macOS Update Screen
Is this a real macOS update?
No. This is a completely fake, simulated macOS update screen that runs as a normal web page in your browser. It does not download, install, modify or slow down anything on your Mac. Nothing is changed. Pressing Escape and closing the tab ends it instantly.
How do I make the fake update fullscreen?
Click anywhere on the screen or press Enter Fullscreen. The fake update fills the entire display, exactly like a real macOS install. Move the mouse to show the exit button, or press Escape to leave. Fullscreen is what makes it convincing as a prank on a friend's Mac.
How do I get out of the fake update screen?
Press the Escape key to exit fullscreen, then close or navigate away from the tab. You can also press Cmd+Tab (Mac) to switch away. Because it is just a web page, there is no risk and no cleanup needed.
Does it install anything or need a download?
No. It runs entirely in the browser using HTML and JavaScript. There is nothing to download or install, and it works on any modern browser on Mac, Windows, Linux, iOS and Android.
Can I change the message and speed?
Yes. Choose captions like "Installing a software update…", "Installing macOS…" or "Setting up your Mac…", switch between a black and Space Gray background, toggle the "minutes remaining" line, and set how fast the progress bar climbs or loop it forever.
Is this fake macOS update free?
Yes, completely free. No account, no ads, no watermark. It is one of 122 free browser-based tools at jasperbernaers.com.