Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Thunderbird does not start - file damaged?

  • 5 replies
  • 0 have this problem
  • 60 views
  • Last reply by david

es
es

When I ty to start Thunderbird an error-window pops up, saying:

C:\Programm Files (x86)\Mozilla Thunderbird\thunderbird.exe

Die Datei oder das Verzeichnis ist beschädigt oder nicht lesbar. 

(The file is damaged oder not readable)

What to do? Can I simply download & install a new Thunderbird version? Had the same problem with pdf-files and a new installation of adobe reader helped. Did run Ccleaner freeware yesterday after quiet a while and now this problem occured for the first time. Btw: I also get this error-window:

C:\Users\Enver\AppDataLocal\HostAppService\Engine\HostAppServiceUpdateManager.exe Die Datei oder das Verzeichnis ist beschädigt oder nicht lesbar. 

(The file is damaged oder not readable)

Thanks for helping!

When I ty to start Thunderbird an error-window pops up, saying: C:\Programm Files (x86)\Mozilla Thunderbird\thunderbird.exe Die Datei oder das Verzeichnis ist beschädigt oder nicht lesbar. (The file is damaged oder not readable) What to do? Can I simply download & install a new Thunderbird version? Had the same problem with pdf-files and a new installation of adobe reader helped. Did run Ccleaner freeware yesterday after quiet a while and now this problem occured for the first time. Btw: I also get this error-window: C:\Users\Enver\AppDataLocal\HostAppService\Engine\HostAppServiceUpdateManager.exe Die Datei oder das Verzeichnis ist beschädigt oder nicht lesbar. (The file is damaged oder not readable) Thanks for helping!

Chosen solution

It worked, thanks a lot!

Read this answer in context 👍 0

All Replies (5)

david
david
  • Top 10 Contributor

I would download and install over the corrupted version.

es
es Question owner

Thanks,

I will try that. Keep you informed.

frisée
frisée

es said
I will try that. Keep you informed.

Back up your data files *first*, just in case.

es
es Question owner

Chosen Solution

It worked, thanks a lot!

david
david
  • Top 10 Contributor

Kewl! You're very welcome. :)