DeltaMac
Tech
That's a simple procedure:
attach your external hard drive.
Open Disk Utility.
click on the Restore tab.
Drag your hard drive (the one you copy from) to the Source window.
drag your destination drive to the Destination window.
Click Restore.
If you have a lot of files/folder, this could take an hour or two.
When that is complete, then your external will be ready to transplant into your old iMac.
attach your external hard drive.
Open Disk Utility.
click on the Restore tab.
Drag your hard drive (the one you copy from) to the Source window.
drag your destination drive to the Destination window.
Click Restore.
If you have a lot of files/folder, this could take an hour or two.
When that is complete, then your external will be ready to transplant into your old iMac.