You can definitely uninstall the Bonjour service without doing any harm to the computer. But, uninstalling or disabling the Bonjour service may limit the functionality of programs that use Bonjour.

What will happen if I uninstall Bonjour?

But, uninstalling or disabling the Bonjour service may limit the functionality of iTunes. If you ordinarily use any of the services provided by Bonjour, then the apps through which you use those features need Bonjour to work. Removing Bonjour from your device will cause those apps to stop working properly.

Can I uninstall Bonjour on Windows 10?

Windows users have a choice to download Bonjour themselves. ... When Bonjour isn't required to run an application, you can safely remove it from your Windows computer. However, some apps depend on it to run properly.