Red Screen Simulator
A solid red screen for color testing, ambiance, or checking screen uniformity. Select configurations from the dashboard below, preview it live, and start the simulation in fullscreen!
Sandbox Preview
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.
Generate static white noise with a visual TV static simulator.
Generate calming pink noise with a visual pink static simulator.
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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Solid Red Screen Online & Color Calibration Tool
Render a solid, pure red screen on any monitor, television, or phone display. This tool is valuable for checking screen uniformity, color representation, and diagnosing stuck pixels that fail to show the red color component.
Red light has the longest wavelength in the visible spectrum, making it excellent for preserving night vision. A full red screen can be used as a low-intensity ambient light source in dark rooms, for stargazing, or as a gentle nightlight.
Launch the red screen in fullscreen mode to block out all other colors and UI elements. It is free to use, requires no downloads, and works instantly in any web browser.
Frequently Asked Questions
Learn how to set up and use the Red Screen simulator on phones, TVs, laptops, and tablets.
How does a red screen preserve night vision?
Red light does not trigger the same pupillary constriction as white or blue light, allowing your eyes to stay adjusted to dark environments.
Can this help detect stuck pixels?
Yes. If a pixel remains black or displays a different color when the screen is solid red, it means the red subpixel is defective.
How do I return to the main dashboard?
Just double-click anywhere on the red screen or press the ESC key to exit the simulator.