How to roll back to previous OS on my macBook

I don't really like new lake tahoe OS. From very real functional reasons. It forces me to re-learn many things. It is in my way, it produces friction instead of helping me to do actual work. So how do i return / roll back to previous OS version.

MacBook Pro 16″, macOS 26.0

Posted on Oct 14, 2025 11:20 AM

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Posted on Oct 14, 2025 11:37 AM

The short version is to completely erase the Mac as though you were going to sell it using Erase All Content and Settings, and then restore a Time Machine backup created prior to upgrading macOS.


Erase your Mac and reset it to factory settings - Apple Support

Restore your Mac from a backup - Apple Support

3 replies

Oct 14, 2025 11:47 AM in response to John Galt

John Galt wrote:
The short version is to completely erase the Mac as though you were going to sell it using Erase All Content and Settings,

Does Erase All Content and Settings revert to a prior OS? I thought it left macOS alone, leaving it on whatever version is currently installed. As I understand it, the only way to go back to an older OS is to use Disk Utility from Recovery Mode to erase the drive, then reinstall the older macOS from Recovery. But I could certainly be wrong.


Pre-Tahoe, I wiped a few Macs. IIRC, Erase All Content and Settings left them on Sonoma/Sequoia, while for the Macs I had to wipe via Recovery (because I could not log in, though I had them removed from MDM), they ended up with Ventura if they were old enough.

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How to roll back to previous OS on my macBook

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