The update to 10.11.1 is hanging after about 3/4 of the installation - what can I do???
The update to 10.11.1 is hanging after about 3/4 of the installation, all I can see even after 8 hours is an apple and an incomplete progress bar - what can I do???
I have tried different ways to restart my MacBook Air (2011), It always comes back into the hanging installation screen...
MacBook Air, OS X El Capitan (10.11.1)