New Mac…what is difference between Setup Assistant and Migration Assistant?

I have always used Migration Assistant in the past when setting up a new Mac. How does Setup Assistant with a Time Machine backup differ from this and when should I use it instead?

MacBook Air 13″, macOS 14.7

Posted on Mar 4, 2025 6:58 AM

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Posted on Mar 4, 2025 7:05 AM

The setup assistant does not give you the option of opting out of specific types of content on the Time Machine backup and Migration Assistant does. If I am going from an Intel Mac to an Apple Silicon Mac, I may choose to use Migration Assistant after the operating system installation so that I can exclude any third-party Intel applications from being installed.


If am upgrading from Sonoma to Sequoia and from an M2 Mac Mini Pro to an M4 Mac Mini Pro (as I have done), then I likely will use the Setup Assistant with the Sonoma TM backup for this purpose as there are no third-party applications that I choose to exclude.


In either case above, I start a fresh TM drive for the first backup of the new operating system and never let it use the previous TM backup drive again.

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Question marked as Top-ranking reply

Mar 4, 2025 7:05 AM in response to mudbucker

The setup assistant does not give you the option of opting out of specific types of content on the Time Machine backup and Migration Assistant does. If I am going from an Intel Mac to an Apple Silicon Mac, I may choose to use Migration Assistant after the operating system installation so that I can exclude any third-party Intel applications from being installed.


If am upgrading from Sonoma to Sequoia and from an M2 Mac Mini Pro to an M4 Mac Mini Pro (as I have done), then I likely will use the Setup Assistant with the Sonoma TM backup for this purpose as there are no third-party applications that I choose to exclude.


In either case above, I start a fresh TM drive for the first backup of the new operating system and never let it use the previous TM backup drive again.

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New Mac…what is difference between Setup Assistant and Migration Assistant?

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