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Level 1

4 points

reseting iMac

When resetting iMac to factory, I have two hard drives to erase.... Macintosh HD and Macintosh HD Data. Which one should be erased???

iMac Line (2012 and Later)

Posted on Mar 6, 2021 1:24 PM

Best reply

Level 8

45,872 points

Posted on Mar 6, 2021 1:38 PM

Hi there,

Select "View" in the toolbar > "Show All Devices".
Select your main hard drive. This will either be "APPLE SSD...", "APPLE HDD...", or "Fusion Drive".
Click Erase, and input the following exactly: (If you cannot select erase on the main hard drive, erase the "Container".)
Name: Macintosh HD
Format: APFS
Scheme: GUID Partition Map (if shown)
Click Erase
Quit Disk Utility
Go to the reinstall macOS app.
Follow the prompts, and install on Macintosh HD.

Cheers,

Jack

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