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Prevent signing in to a Chromebook with a personal Google account

The setting below is required for Myndr to work properly!

Some students get around the rules you set with the Myndr Switch by signing in to the Chromebook with a personal Google account. This is easy to prevent by configuring in the Google Admin console that only a school account may be used to sign in on the school's Chromebooks.

1. Prevent signing in to a Chromebook with a personal account

In the Google Admin console, go to:

Devices > Chrome > Settings > Device settings

On the left, choose the organisational unit (OU) that contains the devices you want to restrict.

Scroll to the Sign-in settings heading and click Guest mode.
Under Configuration, choose Disable guest mode.

Click Save at the bottom.

Go back to Device settings

Scroll to the Sign-in settings heading again and click Sign-in restriction.
Under Configuration, choose Restrict sign-in to a list of users and enter the students' email domain, using a wildcard.
E.g. *@ourschool.nl.

Click Save at the bottom.

From now on, students can only sign in with their school account!

Handy: if the students also use the Chromebooks outside school, you can set the times at which these restrictions do not need to apply under "Off hours".

2. Prevent adding extra accounts

You also need to make sure that no extra accounts can be added:

In the Google Admin console, go to

Devices > Chrome > Settings > Users & browsers

On the left, choose the groups or organisational unit (OU) that contain the students you want to restrict.

Click + Search or add a filter, type sign-in to secondary accounts and press Enter.

Click User experience > Sign-in to secondary accounts

Select Block users from signing in to or out of secondary Google Accounts

Click Save at the bottom

Now students can no longer sign in to the Chromebook with a non-school account, and they cannot add one once they are signed in either.

Updated on: 03/11/2026

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