Mac Re-install the OS: Difference between revisions

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=Re-install with Data Deletion=
=Re-install with Data Deletion=


Control + R while restarting -> OS X Utilities -> Reinstall OS X
Control + R while restarting -> OS X Utilities
 
First delete the partition from Disk Utilities, then "Reinstall OS X". Reinstalling without explicit deletion will upgrade and preserve the data.


The computer must be connected to the Internet (wire or wireless): Utilities -> Network Utility.
The computer must be connected to the Internet (wire or wireless): Utilities -> Network Utility.

Revision as of 11:09, 7 August 2016

External

Internal

Re-install with Data Deletion

Control + R while restarting -> OS X Utilities

First delete the partition from Disk Utilities, then "Reinstall OS X". Reinstalling without explicit deletion will upgrade and preserve the data.

The computer must be connected to the Internet (wire or wireless): Utilities -> Network Utility.

Re-install without Data Deletion

Create a Bootable USB

https://support.apple.com/en-us/HT201372

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