HOW TO Get Migration Assistant working

1 Get the right version

There are different versions of the Migration Assistant for different versions of macOS. If you’re moving to a new Mac you’ll want the Big Sur version, but for used Macs you might need an earlier version to match its OS.

2 Download more bits

Although Windows 10 already includes Microsoft’s .NET programming framework, the Migration Assistant is specific about the version you need and will show you this message when you first run it. Choose Download and Install.

3 Run the assistant

Don’t panic if the download seems to have stopped: sometimes it’s very slow. If it does crash, you can restart by killing the task in Task Manager (Ctrl+ Alt+Delete) and running the Migration Assistant again.