Thunderbird Software Update Failed. One or more files could not be updated

July 19th, 2009 by Tim Leave a reply »

This is a software update loop that has been annoying me for a while now when Thunderbird tries to update itself on Windows. Well, before you go removing any files or removing Thunderbird and starting from scratch, try this somewhat abstract method. I’ll bet more times than not it works:

  1. Ctr+Alt+Delete and open your Process manager.
  2. End the process “Quickcam.exe”.
  3. Restart Thunderbird, install the update and sleep peacefully.
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    2 comments

    1. phil says:

      Another way is to rename “mozMapi32.dll” to something useless.
      Thunderbird generates a new one after restart.

    2. Thanks Tim, worked for me.

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