Help! Can't open .txt files on Windows 11 โ€“ file system error (-2143322111)

January 20, 2026 4 answers
Asked by CuriousCat42
I've been trying to open .txt files on my Windows 11 machine, but I keep getting a file system error (-2143322111). I've run the sfc and DISM commands through the command prompt, and both say there are no issues with my system. I'm starting to think it might be a faulty Windows update. Interestingly, there was a Windows Defender update pending, but applying that didn't resolve anything. Has anyone else encountered this issue?

Answers

JustAnotherUser
I can't open my .txt files either! Itโ€™s so frustrating. Would love to hear if anyone finds a solution.
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FileFixer99
I ran into the same issue earlier. I uninstalled a third-party text editor I had installed, and when I went to open the .txt file, it prompted me to install a new version of Notepad. After doing that, everything's back to normal now!
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UserWithSimilarProblems
I'm facing the same problem today and I'm completely stumped. If anyone finds a solid fix, please share!
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TechieTinker
Have you tried opening your .txt files directly with Notepad? Just load Notepad, go to File -> Open, and find your .txt file to open it that way. Also, check your file associations to make sure .txt files are set to open with Notepad or another text editor.
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