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Level 1

4 points

Internal hard drive 2008 Mac Pro Tower

I installed a new internal hard drive on my 2008 Mac Pro Tower desk top now getting error code external disk not readable

Posted on Aug 21, 2019 6:24 PM

Top-ranking reply

Level 8

42,596 points

Posted on Aug 21, 2019 7:02 PM

Did you format the disk when you installed it in your Mac.

Open Disk Utility click on the disk in the left hand column, click Erase,

Give your disk a name, next to Format select MacOS X Extended (Journaled)

and next to Scheme select GUID Partition Map, then click Erase.

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