crwdns2935425:01crwdne2935425:0
crwdns2931653:01crwdne2931653:0
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Open Disk Utility from the recovery menu, select your drive, and click the Erase button toward the top of the Disk Utility window.
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Make up a name for your drive, and make sure the format is set to Mac OS Extended (Journaled) or APFS. If there is a "Scheme" option, set it to GUID Partition Map.
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Once the new drive is formatted, press Command + Q to exit Disk Utility and return to the recovery menu.
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0