christydesigns wrote:
Migration Assistant not complete after 12 hours. My new MacBook Air just keeps trying to "update" my external hard drive. How do I move documents from my mid 2009 MacBook Pro to my 2020 MacBook Air?
A cabled connection proves to be the most trouble free method.
The most trouble free way to move to a new machine, is using the Setup Assistant on the initial boot of a brand new machine— you have one shot here. https://support.apple.com/en-us/HT205749
If that opportunity has past, the second best way is use the Migration Assistant.
How to move your content to a new Mac https://support.apple.com/en-us/HT204350