Today, my G5 (Leopard) started displaying the Set Up Assistant everytime it booted. Even after completing setup it was impossible to access the GUI. It was held in a continuous.
If you get caught in the Leopard Setup Assistant Loop Bug, here is the way to get your Mac booting again with no loss of data.
- Boot into Safe Mode by holding down the shift key just after you hear the first boot sound. This takes an eternity so be patient.
- Don’t log in to any account. Instead press the back arrow key once (this will highlight an account).
- Then click the restart button.
- Now just wait while your Mac performs some updates and then reboots as normal again.
Even Macs break occasionally / rarely.
