How can I turn off the automatic update function?

edit

Thank you.

@cmaynard Can I set it via a global configuration file also?

Yes, you can directly edit your preferences file if you wish. Look for:

# Check for updates (Windows only)
# TRUE or FALSE (case-insensitive)
#gui.update.enabled: TRUE

The default is TRUE, so change it to:

gui.update.enabled: FALSE

The preferences file is typically located in %APPDATA%\Wireshark\preferences, but you may have multiple files if you use profiles. In case your preferences are installed in a non-standard location, you can use Wireshark's Help -> About Wireshark -> Folders to find where your Personal configuration files are located.

Ah that was a missing link: The file is now located in %APPDATA% . I used the Help-About-Folders dialog for my search. But the Global config folder just shows:

Global configuration        C:\Program Files\Wireshark

For the Protable Version the %APPDATA% directory is at

YOURTINSTALLDIR\Data