Mac OS X Update Simulator
Prank Mac users with this fake Apple loading bar and OS update screen. Select configurations from the dashboard below, preview it live, and start the simulation in fullscreen!
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Configure Simulation
Duration of the simulated progress to reach 100%
Starting completion status percentage
Other Screen Simulators View All Screens →
Your PC ran into a problem and needs to restart. We're just collecting some error info...
For more info and fixes, visit windows.com/stopcode
Stop code: CRITICAL_PROCESS_DIED
Simulate a realistic Windows 10 Blue Screen of Death (BSOD) with a fake progress percentage.
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Generate deep brown noise with a visual brown static simulator.
Prank your friends with a realistic cracked screen, LCD bleeding, and glass breaking sounds.
An interactive sweeping radar screen simulator with sonar pings and impact blips.
A problem has been detected and Windows has been shut down to prevent damage.
UNMOUNTABLE_BOOT_VOLUME
If this is the first time you've seen this Stop error screen, restart.
Technical Information:
*** STOP: 0x000000ED (0x80F14030, 0xc0000006)
Physical memory dump complete.
Simulate a classic Windows XP Blue Screen of Death with UNMOUNTABLE_BOOT_VOLUME error.
> mount /dev/sda1
> loading core.bin...
Look like a pro hacker. Auto-typing code with green text on a black terminal.
Your PC ran into a problem and needs to restart. We're just collecting some error info, and then we'll restart for you.
For more information about this issue and possible fixes, visit https://www.windows.com/stopcode
If you call a support person, give them this info:
Stop code: CRITICAL_PROCESS_DIED
A problem has been detected and Windows has been shut down to prevent damage to your computer.
UNMOUNTABLE_BOOT_VOLUME
If this is the first time you've seen this Stop error screen, restart your computer. If this screen appears again, follow these steps:
Check to make sure any new hardware or software is properly installed. If this is a new installation, ask your hardware or software manufacturer for any Windows updates you might need.
If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use Safe Mode to remove or disable components, restart your computer, press F8 to select Advanced Startup Options, and then select Safe Mode.
Technical Information:
*** STOP: 0x000000ED (0x80F14030, 0xc0000006, 0x00000000, 0x00000000)
Beginning dump of physical memory...
Physical memory dump complete. Contact your system administrator or technical support group for further assistance.
Working on updates 0% complete.
Don't turn off your PC. This will take a while.
Your PC will restart several times.
Installing Windows XP
Setup is preparing your computer to run the operating system.
About 25 minutes remaining
Ubuntu 22.04 LTS
Installing system updates... (0%)
Updating your device...
Please do not turn off or unplug your Chromebook.
0% complete
"The best way to predict the future is to create it."
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Fake macOS Apple Loading & Update Prank Screen
Prank Apple users with a highly realistic, fake macOS update loading screen. This simulator features the iconic white Apple logo on a black background, a smooth white progress bar, and a time remaining indicator that mimics macOS system updates.
Since macOS updates can take a long time, this screen is the perfect gag to run on a friend's MacBook when they step away. When they return, they will think their laptop is locked in a long, unsolicited operating system update.
Set the estimated remaining time in the settings panel and enter fullscreen mode to hide the dock, menu bar, and browser tab. The screen will look exactly like a native Apple system reboot.
Frequently Asked Questions
Learn how to set up and use the Mac OS X Update simulator on phones, TVs, laptops, and tablets.
How do I exit the fake Mac update screen?
Simply press Escape (ESC) or double-click the screen to close the fullscreen view and return to the main dashboard.
Does this tool make any changes to the Mac computer?
No. It is a harmless visual simulation running completely inside your web browser. No actual updates or files are written.
Does it work on Windows computers?
Yes, it runs in any browser, so you can display a Mac update screen on a Windows PC to make a highly confusing prank!