Hello and welcome to our forums,
It is not quite clear for me what you want to achieve here.
Do you want to disable the installation of the
"updater.exe" (as per the title of this thread), or would you like to install the
"updater.exe" but having it in sort of "neutral" mode (not checking for updates).
If it is the first one, then you can conditionally install the updater.exe, as explained in the following article:
How to conditionally install a file or a registry
If it is the second scenario, then unless you are using updater as a service/scheduled task (that automatically updates), then the user can simply ignore the updater.
Hope this helps!
Best regards,
Catalin