windows-itpro-docs/windows/client-management/mdm/policy-csp-appruntime.md

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title	description	author	manager	ms.author	ms.date	ms.localizationpriority	ms.prod	ms.technology	ms.topic
AppRuntime Policy CSP	Learn more about the AppRuntime Area in Policy CSP.	vinaypamnani-msft	aaroncz	vinpa	08/10/2023	medium	windows-client	itpro-manage	reference

Policy CSP - AppRuntime

[!INCLUDE ADMX-backed CSP tip]

AllowMicrosoftAccountsToBeOptional

Scope	Editions	Applicable OS
✅ Device ❌ User	✅ Pro ✅ Enterprise ✅ Education ✅ Windows SE ✅ IoT Enterprise / IoT Enterprise LTSC	✅ Windows 10, version 1803 [10.0.17134] and later

./Device/Vendor/MSFT/Policy/Config/AppRuntime/AllowMicrosoftAccountsToBeOptional

This policy setting lets you control whether Microsoft accounts are optional for Windows Store apps that require an account to sign in. This policy only affects Windows Store apps that support it.

• If you enable this policy setting, Windows Store apps that typically require a Microsoft account to sign in will allow users to sign in with an enterprise account instead.

• If you disable or don't configure this policy setting, users will need to sign in with a Microsoft account.

Description framework properties:

Property name	Property value
Format	chr (string)
Access Type	Add, Delete, Get, Replace

[!INCLUDE ADMX-backed policy note]

ADMX mapping:

Name	Value
Name	AppxRuntimeMicrosoftAccountsOptional
Friendly Name	Allow Microsoft accounts to be optional
Location	Computer Configuration
Path	Windows Components > App runtime
Registry Key Name	Software\Microsoft\Windows\CurrentVersion\Policies\System
Registry Value Name	MSAOptional
ADMX File Name	AppXRuntime.admx

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Policy configuration service provider