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I set up a system today running High Sierra (10.13). I'd like to reformat it to run off a backup of my other Mac, which is currently running Mojave (10.14). For various reasons, I would rather not update the new system to Mojave at this point, namely software compatibility.

Is it at all possible to set up my new computer from a Time Machine disc last backed up with a newer version of macOS ?

  • It won't Restore 'downhill' but I've never tried it as a Migration rather than Restore. Give it a try. – Tetsujin Dec 6 '18 at 7:39

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