error code 0x0000000D Invalid File Signature - I can't open my file anymore

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error code 0x0000000D Invalid File Signature - I can't open my file anymore

Forum: Open Discussion

Creator: Martin Hörner

Created: 2026-02-17

Updated: 2026-02-21

Martin Hörner - 2026-02-17

Since few days I can't open my KeePass file anymore (kdb). I use Version 1.43 . Additionally I have a Key File. I get each time the error code 0x0000000D. According to my understanding I have not changed anything. Is there a possibility to repair the file?

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Paul - 2026-02-17

The error suggest the file you are attempting to open is not a KeePass file. Check that you are opening the correct file.

The only way to recover file that is not what you expect is to restore from backup.
Do you have a copy somewhere?

cheers, Paul

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1

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- Martin Hörner - 2026-02-21
  
  Even though I have tried it before very often without success, I tried it once more and now I could access the file :-). I will store now sometimes a backup ...
  Thanks.
  
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