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Have you connected an external mouse or a mobile trackpad to your Apple MacBook / Pro / Air and are you surprised that the internal trackpad loses its function as a result? Some users might see this as a bug or suspect a hardware failure. However, if you deal a little with the settings under macOS, you will quickly find a solution to the problem. And then you can use the mouse, trackpads and everything else in parallel again;)
The following tip should work in Mac OS X and macOS on all models of the Apple MacBook, MacBook Pro, and MacBook Air. Because if the built-in trackpad is also doing its job, but only refuses to do so when USB input devices or a coupled Bluetooth mouse are connected, then this detour into the settings should help:
Perhaps you have activated the option once and then forgotten it again, or the owner of the Apple MacBook that you have borrowed uses the mobile computer in a way that uses an external input device, but if you continue to use it, it activates it unwanted of the internal touchpad is also given. Ergo, the touchpad was probably deactivated for those cases in which the mouse cursor is moved elsewhere.
Some users also use this operating aid when cats, children or something like that could play jokes with the trackpad. There are numerous reasons to check the box in the system settings. But now you also know how to remove it;) If it is not the mouse replacement but some keys on the MacBook that no longer work, then take a look at this guide: Some keys on the Mac / MacBook no longer work
After graduating from high school, Johannes completed an apprenticeship as a business assistant specializing in foreign languages. But then he decided to research and write, which resulted in his independence. For several years he has been working for Sir Apfelot, among others. His articles include product introductions, news, manuals, video games, consoles, and more. He follows Apple keynotes live via stream.