OSX Tips Using the Recovery HD

How to Fix Reinstall macOS Not Working on MacBook Pro/Air

Unlock your FileVault-encrypted boot drive using Disk Utility on

Mac OS X 10.8.4's Recovery HD removes ability to decrypt FileVault

How to start your Mac in Recovery Mode

How to restore my Mac in Recovery or Internet Recovery

Erase and reformat a storage device in Disk Utility on Mac – Apple

Recovery Partition on Mac 101: Everything You Need to Know

How to reinstall macOS - Apple Support

How to Restart a Mac in Recovery Mode

How to Restore Mac with the help of Recovery HD

How to Reformat Mac OS X Without a Recovery Disc or Drive « Mac OS