What is the system error cascade prank?

The system error cascade prank shows classic Windows-style error dialogs that multiply and escalate across the screen, leading to a final BSOD-style crash reveal. It looks just like a real system failure.

How do I exit the system error simulation?

The simulation ends automatically with a reveal screen. You can also close the browser tab at any time. No actual errors occur on your computer.

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Click to start System Error prank

F11 for fullscreen recommended

💻

My Computer

⊞ Start

🔊 📶 12:00

Your PC ran into a problem and needs to restart.

We're just collecting some error info, and then we'll restart for you.

If you'd like to know more, you can search online for: SYSTEM_SERVICE_EXCEPTION

0% complete

あなたですよ！ 😄

私たちのコンピュータは全く問題ありません。それはただの無害ないたずらでした！

Click to start System Error prank

Your PC ran into a problem and needs to restart.

あなたですよ！ 😄

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Click to start System Error prank

Your PC ran into a problem and needs to restart.

あなたですよ！ 😄

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待って！行かないで！