How to disable guest mode in Chrome devices

Problem

Users are able to login a guest on the managed Chromebooks, how can you disable this?

Environment

  • Chrome devices
    • Chromebooks
    • Chromebox

Solution

You need to set the ChromeOS device policies.
  1. In the Admin console.
  2. Go to Devices > Chrome > Settings > Device.
  3. Choose the org unit where the devices are under.
  4. Search for Guest mode, toggle it to disable.