Article ID: 824288
Article Last Modified on 10/26/2006
APPLIES TO
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Service Pack 3
- Microsoft Windows 2000 Service Pack 3
- Microsoft Windows 2000 Service Pack 3
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
SYMPTOMS
When you install Service Pack (SP) 4 on a Windows 2000-based computer that has DFS Client turned off, you may receive the following stop error message on a blue screen:
Note The parameters may vary.
CAUSE
This error occurs because of an issue in Mup.sys, but the behavior only occurs if DFS Client is turned off. (By default, DFS Client is turned on in Windows 2000.) This error only occurs if DFS Client is manually turned off or if another program has turned DFS Client off.
CAUSE
Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Prerequisites
Windows 2000 SP3 is required.
Restart Requirement
You must restart your computer after you apply this hotfix.
Hotfix Replacement Information
This hotfix does not replace any other hotfixes.
File Information
The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name --------------------------------------------------------- 11-Jul-2003 18:57 5.0.2195.6774 88,624 Mup.sys
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
MORE INFORMATION
If you plan to upgrade to Windows 2000 SP4 and you have DFS Client turned off, Microsoft recommends that you perform one of the following procedures before you upgrade:
- Install the Mup.sys fix, and then turn on DFS Client.
-or-
- If you want to keep DFS Client turned off, apply the Mup.sys hotfix to SP3.
For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
816915 New File Naming Schema for Microsoft Windows Software Update Packages
If you have DFS Client turned off when you apply SP4, and then you restart the computer without first applying this hotfix, you may receive the stop 0x1E error message, and you may not be able to start the computer.
When this error occurs, use either of the following methods to resolve the problem.
- === Method 1 – Use the Recovery Console ===
- Start the computer by using the Recovery Console. For additional information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base:
216417 HOW TO: Install the Windows Recovery Console
- Open the SP4 uninstall folder. By default, the SP4 uninstall folder is in the following location:
%SystemRoot%\$NTServicePackUninstall$ - Copy the Mup.sys file from the SP4 uninstall folder to the following folder:
%SystemRoot%\System32\Drivers - Restart the computer.
- Install the hotfix that is described in this article.
- Restart the computer.
- Start the computer by using the Recovery Console. For additional information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base:
- === Method 2 – Use Registry Editor to Turn on DFS Client ===
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To turn on DFS Client by editing the registry, follow these steps:- Click Start, click Run, type regedit in the Open box, and then click OK.
- Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Mup - Right-click the DisableDfs value, and then click Modify.
- In the Value data box, type 0, and then click OK.
- Quit Registry Editor.
The
DisableDfsregistry value uses the following settings:DisableDFS: REG_DWORD: range: 0 or 1
0 = enabled; 1 = disabled
Default: 0Make sure that the value is set to 0 to turn on DFS Client.
Additional query words: Mup Stop 0x1e 0x00000001e
Keywords: kbbug kbfix kbqfe kbwin2000presp5fix kbhotfixserver KB824288
