You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

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

Top-ranking reply

Level 8

46,062 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

View in context

Similar questions