Repeated Regsavekey/Regrestorekey Actions Corrupt Registry Hive

This article was previously published under Q189061
This article has been archived. It is offered "as is" and will no longer be updated.
SYMPTOMS
When you repeatedly save and restore a registry key in Windows NT, theregistry hive may eventually become corrupted.
CAUSE
If you save a registry key to disk, and then later restore it over anotherkey where the key name length is different (that is, longer than theoriginal key name), it causes the actual allocated storage for the key togrow. If you repeat this process enough times, eventually the storageassigned to this key becomes so large that the registry check code declaresthe hive corrupted.
RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or 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
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Microsoft has confirmed this to be a problem in Windows NT version 3.1,3.5, and 3.51. We are researching this problem and will post newinformation here in the Microsoft Knowledge Base as it becomes available.
multiple saving saves restores restoring import export reg
Properties

Article ID: 189061 - Last Review: 02/28/2014 04:16:54 - Revision: 3.1

  • Microsoft Windows NT Server 4.0, Terminal Server Edition
  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 3.1
  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Enterprise Edition
  • kbnosurvey kbarchive kbbug kbfix KB189061
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