Fake blue screen that crashes on cue

The modern blue screen

The big sad face, the line about collecting some error info, and a percent that climbs. It sits at 0% for a while first, then jumps its way to 100%. Then it goes black, shows a spinner as if starting up, and crashes again with a new stop code.

MEETING_OVERRUN, CALENDAR_WATCHDOG_TIMEOUT and PAGE_FAULT_IN_UNPAID_AREA are built like real stop codes, and no support desk can look them up. The square beside them looks like a QR code and scans as nothing, so nobody’s phone gets involved.

The classic blue screen

The classic one is the text-mode crash of the late 1990s, with a grey title bar, a fatal exception “at 0028:C0011E36” and two ways to lose your unsaved work. The numbers change each time it opens. Exception 0E is a page fault, which means a program went looking for memory that wasn’t there.

It ends with “Press any key to continue” over a blinking cursor. Typing does nothing on this page, so it keeps asking all afternoon.

Everybody has seen one

In July 2024 a faulty CrowdStrike update sent 8.5 million Windows computers to the blue screen at once. That was less than one percent of all Windows machines. Since then, nobody across the room needs a blue screen explained.

A crash also ends the conversation. A coworker who sees a fake blue screen of death does not ask for the spreadsheet, in case you ask them to help.

The blue went black

Windows 11 version 24H2 swapped the blue for black in update KB5062660, a July 2025 preview whose changes went into August’s security update. The black one drops the sad face and the QR code. The fake keeps the blue, since that is the one anyone recognises at 20 feet.

In Windows 3.1, Ctrl+Alt+Del brought up a blue text screen of its own. Steve Ballmer wrote it.

More screens for a slow afternoon

For something calmer, the fake update screen crawls to 99% and restarts on its own. The fake work screen types a spreadsheet as you press keys. And when the blue screen has done its job, the excuses to get out of work are ready for the rest of the day.

Exit, hidden on purpose

Exit sits out of sight in the top corner and comes back with the pointer after a mouse move or a tap. No crash screen ever came with a button.

On a phone or a tablet

iPhone Safari keeps pages out of full screen, so there the crash sits over the page, under the address bar. An iPad, an Android phone or a computer gives it the whole display, the way a real crash takes it.