Reinstall MacOS - reset your Mac

Viruses or problematic software can cause you to experience problems with your Mac. Often it is then necessary that you reinstall your macOS operating system. Although this will remove all data from your Mac, you will be able to use the device properly again afterwards.

How to reinstall MacOS

Generally, MacOS is considered a very reliable operating system. Nevertheless, the moment may come when you want or need to reinstall the system.

1. First create a backup of your data.
2. Be ready with all installation media and serial numbers, as you will need to enter them again later.
3. Shut down your Mac and start the device in recovery mode.
4. Now erase the system hard drive of your Mac. When doing this, make sure that you have selected the correct hard drive. Usually this is the Macintosh HD.
5. In the recovery main window, you must now select that you want to reinstall macOS.
6. You will be shown the software license, where you must click "Accept". After that, confirm your entry.
7. Now you will see your system drive. Click on it and select the "Install" option. Nun führt Ihr Mac eine Neuinstallation durch.

Setzen Sie Ihren Mac regelmäßig neu auf

Es sammelt sich mit der Zeit viel Datenmüll auf Ihrem Mac an. Diese Fragmente behindern die Leistungsfähigkeit des Gerätes. Deshalb sollten Sie Ihren Mac regelmäßig neu aufsetzen, um diese Reste zu entfernen.