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Home > Help & Support > Knowledge Base > Computers & Software > Computer Management > How can I tell what version of macOS I have?

How can I tell what version of macOS I have?

Click the Apple icon in the upper left-hand of your screen. Then click About This Mac.

The following screen will appear:

The name of the MacOs is at the top—High Sierra in this case. Right below the name of the MacOS name is the version number.

 

 

Last modified: July 30, 2020

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After October 14, 2025, Microsoft will no longer provide security updates or support for Windows 10 systems. As a result, all Windows 10 systems must be upgraded to Windows 11 or removed from the Mason network. Learn more ⬇️

https://its.gmu.edu/bulletins/microsoft-windows-11-announcement/

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