Use FileVault to encrypt the startup disk on your Mac

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What is FileVault? FileVault for Mac Explained

Nov 05, 2019

Turn off file vault disk encryption, how to do it

Mar 25, 2019 How to Enable FileVault Encryption on Mac · Gravity Payments Click the FileVault tab. Click the Lock button, then enter an administrator name and password. Click Turn Off FileVault. Restart your Mac. After your Mac starts up, decryption of your startup disk occurs in the background as you use your Mac. This takes time, and it happens only while your Mac is awake and plugged in to AC power.