Network drives aren't mapped correctly from DFS namespace in Windows Server 2012 R2-based RDS server

Attiecas uz: Windows Server 2012 R2 DatacenterWindows Server 2012 R2 StandardWindows Server 2012 R2 Essentials

This article describes an issue that occurs on a Windows Server 2012 R2-based computer that has the Remote Desktop Services (RDS) role installed. You can fix this issue by using the update in this article. Before you install this update, see the Prerequisites section.


Mapped network drives to a DFS share don't work for subsequent users. This issue occurs when the following conditions are true:
  • User Account Control (UAC) is enabled. 
  • The EnableLinkedConnections registry value is set to 1.

For example, user A connects to the RDS server and starts his RD session. At logon, all drives are mapped successfully and user A can see the network drives in Windows Explorer are connected. When user B connects to the RDS Server and logs on, the drives that were already mapped by user A are shown as disconnected in Windows Explorer. The disconnected network drives, which were connected by user A, are also shown as disconnected to all the subsequent users that log on after user A. 

How to get this update

You can get this update by using one of the following methods. We have released an update through Windows Update and Microsoft Update Catalog. Even though this issue is observed only in Windows Server 2012 R2, the update also applies to Windows 8.1 and Windows RT 8.1. 

Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as an Optional update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Update detail information


To apply this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Learn about the terminology that Microsoft uses to describe software updates.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.