Can I downgrade macOS Mojave?

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Level 1

8 points

Can I downgrade macOS Mojave?

Hi,

we bought a company laptop with Mojave preinstalled but we need to downgrade to High Sierra, is it even possible? We tried lots of advices from the internet but norhing has worked yet.

Thanks for info

MacBook

Posted on Sep 3, 2019 12:40 PM

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Answer 1

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macjack

Level 10

111,222 points

Sep 3, 2019 1:59 PM in response to KralKalda

KralKalda wrote:

I do not have it by my side now, but I believe it is the 2019 config, 32gb ram, 256gb ssd.

If it shipped with Mojave then it won't run High Sierra. No Mac can run an OS previous to the one it shipped with.

If it's absolutely necessary you can try it on a virtual machine.

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Answer 2

KralKalda Author

Level 1

8 points

Sep 3, 2019 1:09 PM in response to Allan Eckert

Why do you need to know what is our development team working on? How does it help you with trying to answear my question about downgrading macOS? I simply cannot share company info here in discussion thread. So if you cannot help without this info, thanks for your time.

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Answer 3

Sep 3, 2019 1:52 PM in response to KralKalda

As a general rule, you cannot run an OS lower than the one you bought the machine with.

You could create a clone (Using SuperDuper or CabonCopyCloner) drive from one of your other (similar) machines and try to boot from that, but don't get your hopes up.