Press Esc++Power. A yellow exclamation point (!) or "Please insert a recovery USB stick" is displayed.
Press Ctrl+D to begin Developer mode, then press Enter.
Press Space, then press Enter. The Chromebook deletes its local data, returning to its initial state. Note: Forced re-enrollment is enabled for the device, you'll see a note that Developer mode is blocked. This shortens the wipe process, and still allows for re-enrollment when the device automatically restarts in Verified mode.
When the transition completes, press the space bar, then press Enter to return to Verified mode.
Enroll the Chromebook before signing in to it.
Steps below to enroll Chromebooks:
Switch on the Chromebook to be enrolled and when prompted to sign in, press the key combination Ctrl+Alt+E. ...