add known issue 12661534

Author: aczechowski

memdocs/configmgr/core/plan-design/configs/support-for-windows-11.md

@@ -2,7 +2,7 @@
 title: Support for Windows 11
 titleSuffix: Configuration Manager
 description: Learn about the Windows 11 versions that are supported as clients with Configuration Manager.
-ms.date: 11/08/2021
+ms.date: 11/22/2021
 ms.prod: configuration-manager
 ms.technology: configmgr-core
 ms.topic: conceptual
@@ -131,6 +131,19 @@ Use one of the following options to work around this issue:
 
 - Add users to the authentication exclusion list. For more information, see [Configure SMS Provider authentication](../security/configure-security.md#sms-provider-authentication).
 
+### Offline servicing
+
+<!-- 12661534 -->
+
+When you [apply software updates to an image](../../../osd/get-started/manage-operating-system-images.md#apply-software-updates-to-an-image) for Windows 11, the process will fail. You'll see errors similar to the following entries in the offline servicing log file, `OfflineServicingMgr.log`:
+
+```log
+InstallUpdate returned code 0x8007007b
+Failed to install update with ID 16787962 on the image. ErrorCode = 123
+```
+
+Currently, there's no workaround.
+
 ## Next steps
 
 [Support for the Windows ADK](support-for-windows-adk.md)