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People are sharing a reproducible Windows file-naming workaround/bug: naming a file starting with “@1,2 substring,” opening/saving it with Notepad, then creating it again via File Explorer can trigger an issue. The report claims it affects PCs since 2001 and references a current Windows build (26200.8457).

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Also known as notepad plus plus·notepad

0.2 Activity score steady · 2d
1.0 Peak score 3d window
Mixed Sentiment
1 Sources · 1 signals
Last updated · next ~19:00
3d First on radar
Key Takeaway If you name files with the specified “@1,2” substring and use Notepad then Explorer’s New > Text Document flow, you may reproduce a long-standing Windows issue.
AI summary · grounded in cited sources
Windows file-naming bug Notepad reproduction steps Explorer new text document notepad plus plus notepad
AI Brief

If you name files with the specified “@1,2” substring and use Notepad then Explorer’s New > Text Document flow, you may reproduce a long-standing Windows issue.

People are sharing a reproducible Windows file-naming workaround/bug: naming a file starting with “@1,2 substring,” opening/saving it with Notepad, then creating it again via File Explorer can trigger an issue. The report claims it affects PCs since 2001 and references a current Windows build (26200.8457).

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Briefing Findings · If you name files

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Trigger pattern File name starting with “@1,2 substring”
Reproduction steps Save with Notepad, then create with File Explorer > New > Text Document
Reported Windows build Build 26200.8457

What to Watch

  • Verify whether the issue reproduces on the same Windows build: 26200.8457. r/windows
  • Test the exact filename pattern “@1,2 substring” using the Notepad -> Explorer New > Text Document sequence. 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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