diff --git a/windows/security/threat-protection/security-policy-settings/accounts-block-microsoft-accounts.md b/windows/security/threat-protection/security-policy-settings/accounts-block-microsoft-accounts.md
index b19acf6ade..ab6175a99f 100644
--- a/windows/security/threat-protection/security-policy-settings/accounts-block-microsoft-accounts.md
+++ b/windows/security/threat-protection/security-policy-settings/accounts-block-microsoft-accounts.md
@@ -20,11 +20,13 @@ ms.technology: itpro-security
 # Accounts: Block Microsoft accounts
 
 **Applies to**
--   Windows 11
--   Windows 10
+-   Windows 10, version 1607 and earlier
 
 Describes the best practices, location, values, management, and security considerations for the **Accounts: Block Microsoft accounts** security policy setting.
 
+> [!IMPORTANT]
+> In Windows 10, version 1703 and later, this policy is no longer effective because the process for adding Microsoft Accounts changed. For Windows 10, version 1703 and later, instead of using this policy use the "Block all consumer Microsoft user account authentication" policy located under Computer Configuration\Administrative Templates\Windows Components\Microsoft account.
+
 ## Reference
 
 This setting prevents using the **Settings** app to add a Microsoft account for single sign-on (SSO) authentication for Microsoft services and some background services, or using a Microsoft account for single sign-on to other applications or services. For more information, see [Microsoft Accounts](/windows-server/identity/ad-ds/manage/understand-microsoft-accounts).