Unable to Start Windows Explorer After Applying Service Pack 5

This article was previously published under Q236387
This article has been archived. It is offered "as is" and will no longer be updated.
Symptoms
When you try to use Windows Explorer after applying Windows NT 4.0 Service Pack 5, Windows Explorer may not start, and you may receive the following error message:
This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator.
Cause
This problem can occur because of an update made to the Shell32.dll file by Service Pack 5 that permits you to hide the system drive for the default user or a specific user.
Resolution

Windows NT Server 4.0, Terminal Server Edition

To resolve this problem, obtain the latest service pack for Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

Status

Windows NT 4.0

Microsoft has confirmed that this is a problem in Windows NT 4.0.

Windows NT Server 4.0, Terminal Server Edition

Microsoft has confirmed that this is a problem in Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT Server 4.0, Terminal Server Edition Service Pack 6.
More information
For additional information about the Shell32.dll update, please click the article number below to view the article in the Microsoft Knowledge Base:
219392 System Drive Cannot be Hidden in Windows NT Explorer View
Properties

Article ID: 236387 - Last Review: 10/26/2013 05:15:00 - Revision: 3.0

Microsoft Windows NT Workstation 4.0 Developer Edition, Microsoft Windows NT Server 4.0 Standard Edition, Microsoft Windows NT Server 4.0 Enterprise Edition

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