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To allow or block Microsoft account connections on managed Windows devices, create a Windows 10 and later Settings Catalog profile in Intune, add Accounts > Allow Microsoft Account Connection, choose Allow or Block, assign the profile, and check its deployment status after devices check in. The policy controls Microsoft account use for non-email connection authentication and services; it applies to the device, not an individual user.

What the policy controls

The Windows Accounts Policy CSP describes AllowMicrosoftAccountConnection as controlling whether a user may use a Microsoft account for non-email-related connection authentication and services. It does not govern email-related use. The setting is device-scoped, so its effect is not limited to the user or group assigned the Intune profile once it is applied to a device. Microsoft’s Policy CSP – Accounts lists support for Windows 10 version 1507 and later, on Pro, Enterprise, Education, and IoT Enterprise editions, including IoT Enterprise LTSC.

Choose Allow or Block

Intune choice Windows CSP value Effect
Allow 1 (the CSP default) Permits the covered non-email Microsoft account connections and services.
Block 0 Does not allow the covered connections and services.

Choose based on the intended account-use policy for the target devices and the other people who may use them. Because the setting is device-scoped, consider that device-wide impact when selecting assignments. An example that sets this policy to Block in Microsoft’s HoloLens 2 advanced security baseline is specific to that baseline; it does not establish Block as the default for Windows generally.

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Configure the setting in Intune

  1. Sign in to the Microsoft Intune admin center with an account that has at least the built-in Policy and Profile Manager role.
  2. Go to Devices > Manage devices > Configuration > Create > New policy. Select Windows 10 and later as the platform and Settings catalog as the profile type.
  3. Name the profile, continue to Configuration settings, and select Add settings. Search for Allow Microsoft Account Connection. Microsoft’s Windows device-restriction reference places it under Accounts and identifies its CSP path as Accounts/AllowMicrosoftAccountConnection.
  4. Add the setting and choose Allow or Block.
  5. Continue through scope tags if your organization uses them, assign the profile to the intended users or groups, review the configuration, and create the profile.
  6. After devices check in for configuration updates, open the profile’s reporting view and review per-setting status for success, conflict, or error.

Microsoft’s Settings catalog guidance says a new configuration is applied at the device’s next check-in for configuration updates. If you later set this setting to Not configured in the profile, that profile stops managing it; another policy or the device user may then change it.

Check scope, conflicts, and related policies

Account for device-wide impact

Although Intune assignments can target users or groups, this CSP setting is device-scoped. Microsoft’s Enterprise State Roaming guidance cautions that the MDM policies covered there apply device-wide and advises using them only on corporate-owned devices because they affect other user accounts. That caution is documented in the Enterprise State Roaming context; consider it when choosing targets and validate the behavior in your own managed-device scenario.

Investigate conflicting configurations

If the profile reports a conflict, inspect Intune’s per-setting reporting for other configurations of the same setting. Policies assigning different values to the same setting can conflict; resolve the competing assignments or values, then allow the device to check in again and review status.

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Do not confuse it with the Sign-In Assistant service policy

AllowMicrosoftAccountConnection is not the same as AllowMicrosoftAccountSignInAssistant, which controls the Microsoft Account Sign-In Assistant service, wlidsvc. Microsoft documents possible consequences of disabling that service policy in some Windows 10 circumstances: Windows feature updates may not be offered, and subscription activation or initial digital-license activation may be disrupted. Those consequences concern the service policy and should not be attributed to the connection policy discussed here.

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