Perform these steps to limit who can register Azure AD devices:
- Navigate your browser to https://portal.azure.com.
- Sign in with an account in Azure Active Directory that has the Global administrator role assigned.
- Perform multi-factor authentication when prompted.
- In the left-hand navigation pane, click Azure Active Directory.
- In the Azure Active Directory pane, click Devices.
- In the Devices pane, click Device settings.
- Select None instead of All for the Users may register their devices with Azure AD option:
- When the Users may register their devices with Azure AD option is grayed-out, Azure AD ...