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Does migration assistant overwrite files on a new mac?

Hi there,


Today, one of my computer's just died (old 2010 imac) and I have its files stored on a time capsule.

If I want to transfer its files (600gb) on a mac that I am already using, using migration assistant + time capsule, will it overwrite my entire computer (causing me to lose what I have), or will it just add on to what I have?


Thanks!

iMac Line (2012 and Later)

Posted on Apr 25, 2021 11:44 AM

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Question marked as Best reply

Posted on Apr 25, 2021 11:51 AM

When you buy a new Mac the easiest, quickest and most reliable method is to simply connect the old Mac's Time Machine External Hard Disk to the new Mac using a USB cable before you turn on the new Mac. When you start the new Mac for the first time it will startup Setup Assistant (SA), SA will get to a point where it asks if you are migrating from another computer, select Yes  and follow the on-screen prompts and it's done! It is THAT simple.

 

If you have already done SA on the new computer then simply connect the Time Machine External Hard Disk using a USB cable and launch Migration Assistant (MA) which is located in Applications - Utilities - MA. Then follow the on-screen prompts. 

 

The ONLY difference between MA and SA is MA will create a new user account that you need to log into.

 

Both SA and MA migrate applications (not 32 bit apps) , data files, settings, it does not migrate Mac OS itself. Some professional apps such as Adobe and Microsoft apps may require re-installing their apps as they will not allow them to be migrated. As long as you kept the security keys for installing their apps, it is not a big deal. Whatever you do NEVER EVER use Wi-Fi to migrate your data.


SA & MA does not overwrite any files due the migration.

5 replies
Question marked as Best reply

Apr 25, 2021 11:51 AM in response to sev24

When you buy a new Mac the easiest, quickest and most reliable method is to simply connect the old Mac's Time Machine External Hard Disk to the new Mac using a USB cable before you turn on the new Mac. When you start the new Mac for the first time it will startup Setup Assistant (SA), SA will get to a point where it asks if you are migrating from another computer, select Yes  and follow the on-screen prompts and it's done! It is THAT simple.

 

If you have already done SA on the new computer then simply connect the Time Machine External Hard Disk using a USB cable and launch Migration Assistant (MA) which is located in Applications - Utilities - MA. Then follow the on-screen prompts. 

 

The ONLY difference between MA and SA is MA will create a new user account that you need to log into.

 

Both SA and MA migrate applications (not 32 bit apps) , data files, settings, it does not migrate Mac OS itself. Some professional apps such as Adobe and Microsoft apps may require re-installing their apps as they will not allow them to be migrated. As long as you kept the security keys for installing their apps, it is not a big deal. Whatever you do NEVER EVER use Wi-Fi to migrate your data.


SA & MA does not overwrite any files due the migration.

Does migration assistant overwrite files on a new mac?

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