STATUS_ACCESS_DENIED error if you copy files when an NFS server is running Windows Server 2008 SP2


Consider the following scenario:
  • You have a server that's running Windows Server 2008 Service Pack 2 (SP2).
  • You configure Network File System (NFS) on this server, and you create NFS shares by using Active Directory Domain Services (AD DS) or Active Directory Lightweight Directory Services (AD LDS).
  • You enable services for unmapped user access.
  • You create a user map only for unmapped users on the AD LDS server.
  • You copy files that are owned by an unmapped user from the NFS client to the NFS server until a cache update time-out occurs. 

In this scenario, you receive the following error message from the NFS server:



This problem occurs because the token for the unmapped user is cleared and cannot be found.


Hotfix information

A supported hotfix is available from Microsoft Support. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this hotfix, you must have Service Pack 2 for Windows Server 2008 installed.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

File information


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


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

Article ID: 2891360 - Last Review: Jan 20, 2014 - Revision: 1

Windows Server 2008 Service Pack 2