Traduction de l’étape 1
Open Disk Utility from the recovery menu, select your drive, and click the Erase button toward the top of the Disk Utility window.
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.
Once the new drive is formatted, press Command + Q to exit Disk Utility and return to the recovery menu.