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A Windows-related bug is being discussed as something that can be reproduced by naming files with an @1,2 substring and creating them via Notepad followed by File Explorer’s New > Text Document. People claim it has affected PCs since 2001 and can be triggered on recent Windows builds (26200.8457 mentioned).

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Also known as notepad plus plus·notepad

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Key Takeaway You can apparently reproduce a long-running Windows text-document issue by using the @1,2 filename substring with Notepad, then creating a Text Document via File Explorer.
AI summary · grounded in cited sources
Windows bug reproduction Notepad file naming File Explorer new document notepad plus plus notepad
AI Brief

You can apparently reproduce a long-running Windows text-document issue by using the @1,2 filename substring with Notepad, then creating a Text Document via File Explorer.

A Windows-related bug is being discussed as something that can be reproduced by naming files with an @1,2 substring and creating them via Notepad followed by File Explorer’s New > Text Document. People claim it has affected PCs since 2001 and can be triggered on recent Windows builds (26200.8457 mentioned).

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Briefing Findings · You can apparently reproduce a long-running Windows

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trigger method Name a file starting with @1,2 substring, save with Notepad, then use File Explorer > New > Text Document.
windows build cited 26200.8457.

What to Watch

  • Test the exact reproduction steps on the Windows 26200.8457 build and report results (working vs. fixed). r/windows
  • Look for follow-up discussions confirming whether the @1,2 filename substring reliably triggers the issue across other builds. r/windows

What Changed

  • I discovered the oldest Windows bug ever documented or resolved, which is affecting every PC on the planet since 2001. Paradox, any kid can reproduce it: just name a file starting with @1,2 substring, first saving it with Notepad, then using the File Explorer > New > Text Document. Build 26200.8457 r/windows
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r/windows

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