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Bugs Killed

Windows

ZIP files had the wrong or missing default app association

The default app association for ZIP files was removed or reset. The technician reset the file association and noted that a reboot was required before checking again.

Killed once by someone from XL.net, on 2026-01-23.

Affects

Versions

  • Windows

What you see

  • ZIP files no longer opened with the expected application
  • The default app association for ZIP files was missing or wrong

Why it happens

Likely The default file association for ZIP files had been removed or reset.

When it shows up

A Windows computer no longer opens .zip files with the intended default application.

You are in this case if:

  • The .zip default app is blank or points to the wrong program in the default apps settings

1 fix below

The steps that killed it

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Someone from XL.net killed this on a Windows computer on 2026-01-23. It is written up from that one repair, so it cites no outside page.