Disk encryption protects your files in case you lose your computer. It requires you to enter a security key each time the computer starts up.
Awgelhen n uḍebsi ad immesten ifuyla-inek ma tesruḥeḍ aselkim-inek m. yesra ad tsekcmeḍ tasarut n tɣellist di yal tikkelt ara yekker uselkim.