Mac OS X
Q: Is it necessary to back up your mac before downloading Sierra?
Will the update erase the content on my mac? or can i get away with not backing it up and everything will still be intact.
MacBook Pro (Retina, 15-inch, Mid 2014), iOS 10.0.2
Posted on Sep 29, 2016 12:34 PM
by Old Toad,Apple recommended
Mac OS X
If all goes as intended everything will be intact after upgrading to Sierra (except for the system). However, it's like driving without a seatbelt. You don't need it until you do.
I would never install a new system or system update without having a current backup of my boot drive.
Posted on Sep 29, 2016 1:07 PM