 macOS How-To

Provides information on how to check your MacOS version, verify that you are running a supported version, and how to update if you need.

We recommend checking your hardware, applications, and peripherals for compatibility before upgrading to macOS Sonoma.

Open an app from an unidentified developer in macOS.

How to prepare for a smooth macOS upgrade.

Unlock a file or folder to be able to delete or change it.