If the password is accepted, the volume mounts on the Desktop.
Connect the Mac to another Mac (the host) using a Thunderbolt 3 (USB-C) cable.Once you see the Thunderbolt logo, release the T key.On the Mac you want to unlock, turn on the computer while holding the T key.If a user forgets their macOS user account password and can't log in to their Mac, you can use the private key to unlock their disk. You should see a message that a recovery key has been set by your company, school, or organization. If FileVault is turned off, open Security & Privacy preferences and turn on FileVault.Sudo fdesetup changerecovery -institutional -keychain /Library/Keychains/FileVaultMaster.keychain If FileVault is already turned on, enter this command in Terminal:.Sudo chmod 644 /Library/Keychains/FileVaultMaster.keychain Sudo chown root:wheel /Library/Keychains/FileVaultMaster.keychain These commands make sure that the file's permissions are set to -rw-r-r- and the file is owned by root and assigned to the group named wheel. Open the Terminal app and enter both of the following commands.
Note: From the window below, you can view saved passwords and certificates. Double click on Keychain Access to open the application. Click on Applications then double click on Utilities.
Note: From the window below, you can view saved passwords and certificates. How to open Keychain Access in Mac OS X Click and open Finder from the dock. After removing the private key from the keychain, follow these steps on each Intel-based Mac that you want to be able to unlock with your private key. Click on Applications then double click on Utilities.