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policy-all-users-device-registration.md

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title Require MFA for device registration
description Improve visibility and enforce more granular control over the device registration process though Conditional Access.
ms.topic how-to
ms.date 04/01/2025
ms.reviewer lhuangnorth
ms.custom sfi-image-nochange

Require multifactor authentication for device registration

Use the Conditional Access user action to enforce policy when users register or join devices to Microsoft Entra ID. This control provides granularity in configuring multifactor authentication for registering or joining devices instead of a tenant-wide policy that currently exists. Administrators can customize this policy to fit the security needs of their organization.

User exclusions

[!INCLUDE active-directory-policy-exclusions]

Create a Conditional Access policy

Warning

If you use external authentication methods, these methods are currently incompatible with authentication strength and you should use the Require multifactor authentication grant control.

  1. Sign in to the Microsoft Entra admin center as at least a Conditional Access Administrator.
  2. Browse to Entra ID > Conditional Access > Policies.
  3. Select New policy.
  4. Give your policy a name. We recommend that organizations create a meaningful standard for the names of their policies.
  5. Under Assignments, select Users or workload identities.
    1. Under Include, select All users.
    2. Under Exclude, select Users and groups and choose your organization's emergency access or break-glass accounts.
  6. Under Target resources > User actions, select Register or join devices.
  7. Under Access controls > Grant, select Grant access.
    1. Select Require authentication strength, then select the built-in Multifactor authentication authentication strength from the list.
    2. Select Select.
  8. Confirm your settings and set Enable policy to Report-only.
  9. Select Create to create to enable your policy.

[!INCLUDE conditional-access-report-only-mode]

Warning

When a Conditional Access policy is configured with the Register or join devices user action, you must set Entra ID > Devices > Overview > Device Settings - Require Multifactor Authentication to register or join devices with Microsoft Entra to No. Otherwise, Conditional Access policies with this user action aren't properly enforced. More information about this device setting can found in Configure device settings.

:::image type="content" source="media/policy-all-users-device-registration/device-settings-require-mfa-to-register-or-join.png" alt-text="Screenshot of the Require Multifactor Authentication to register or join devices with Microsoft Entra control to be disabled." lightbox="media/policy-all-users-device-registration/device-settings-require-mfa-to-register-or-join.png":::

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