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User profile for user: renmag00
renmag00 Author
User level: Level 1
8 points

Utility Disk is not giving me the option to erase my MacBook '11 hard drive

I recently erased the Bootcamp partitioned drive on my MacBook '11 laptop (ver. 10.10.5 Yosemite) and when I went back to try & launch Mac OS Diagnostic, I was unable to get back to that utility at boot up (after many unsuccessful attempts via Command+R keys and Command+Option+Shift+R). When I go to Utility Disk to try and erase the hard drive from there, the option to Erase is not available.


Can someone provide guidance/insight on how I can wipe my MacBook hard drive some other way? Can I try from a another Mac computer and connect via Firewire?

MacBook

Posted on Nov 3, 2020 8:56 AM

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User profile for user: renmag00
renmag00 Author
User level: Level 1
8 points

Nov 4, 2020 6:47 PM in response to Lanny

I was able to find another use case similar to my MacBook (2009). I ended up pressing down the Option+Command+R keys at startup. Kept them pressed until I saw my monitor change to a light grey-ish color. And then the Mac OS Diagnostic launched & I was able to safely erase my main hard drive

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Utility Disk is not giving me the option to erase my MacBook '11 hard drive

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