MacOS: Startup options - these combinations exist

When you start your Mac, you have the option to apply various key combinations to make changes according to your preferences. Therefore, it is helpful if you know the most important keyboard shortcuts to be able to act quickly and effectively when you need to.

These key combinations are helpful

• Command (?)-R: With this key combination you make your Mac start in Recovery Mode. It will help you if your Mac fails to boot.
• Option (?): If you press this key at startup, then you can view all partitions of your Mac. This can be very helpful if you want to access your bootable external media.
• Option-Command-P-R: If your Mac has system problems, then you should use this key combination to reset the NVRAM and PRAM respectively. This can ensure that you enable a faster startup.
• Shift: By pressing this key, you ensure that your macOS starts in safe mode. At the same time, the cache is cleared.
• D: This calls Apple Diagnostics and the device and all components are checked for errors. This allows you to independently search for errors.

A wide range of possibilities

There is an extensive list of possible keyboard shortcuts that you can apply at startup. However, they can also be used to make massive changes to the operating system, which will ensure that you create unwanted problems. Therefore, you should consider in advance which key combinations are really useful for your purposes.