How can I install Sierra to an External SSD?
How can I install lower OS, Sierra in to an external SSD?
MacBook Pro 15″, macOS 10.13
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How can I install lower OS, Sierra in to an external SSD?
MacBook Pro 15″, macOS 10.13
macOS High Sierra - Technical Specifications
General Requirements
Mac Hardware Requirements
For details about your Mac model, click the Apple icon at the top left of your screen, choose About This Mac. These Mac models are compatible with macOS High Sierra:
macOS High Sierra - Technical Specifications
https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12
macappstores://apps.apple.com/app/macos-high-sierra/id1246284741?mt=12
macOS High Sierra - Technical Specifications
General Requirements
Mac Hardware Requirements
For details about your Mac model, click the Apple icon at the top left of your screen, choose About This Mac. These Mac models are compatible with macOS High Sierra:
macOS High Sierra - Technical Specifications
https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12
macappstores://apps.apple.com/app/macos-high-sierra/id1246284741?mt=12
Hi, I'll give more information to someone, who is willing to help me.
in my MBP 15-inch, 2017 with macOS Big Sur ver.11.7.1 I have music softwares with old version and new version.
A new version softs are fine with a Big Sur but to use without mistakes old ones I need High Sierra as I done before.
That's why I need temporally Install High Sierra to an external SSD and work for a while switching between two macOS's
Thanks in advance.
How can I install Sierra to an External SSD?