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biniyam145 Author

Level 1

4 points

i can't install high sierra

how can i install high Sierra on Mojave 10.14.6 b/c my mac is geting busy

MacBook Pro 13″, macOS 10.14

Posted on Aug 31, 2020 4:14 AM

Top-ranking reply

Barney-15E

Level 10

117,256 points

Posted on Aug 31, 2020 5:39 AM

Revert your Mac to a previous macOS version - Apple Support

Bottom line is you must erase your drive before you can install a previous OS. If you have backup from before you upgraded, you can restore that. However, you will lose any files you altered while on the newer OS.

If you don't have a backup, it is you must export any Library-based content (Photos, iTunes, Mail POP accounts, etc) and then import that back once you install the older OS.

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i can't install high sierra

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