624      iPhone_iPad_Mac_apple

Reinstall ?

Hi. I have just purchased a second hand iMac 27" Late 2012 Mac OS Sierra ver 10.12.6 How do I reinstall the software on the HD and start over?

With the older Macs you had a reinstall disc.

John

Restart with the Shift, Option, Command, and R keys held down, use the Disk Utility to erase the internal drive, and install a fresh OS.

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最后更新：2017-08-21 22:54:17

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