Computer Does Not Boot When Tracking Memory Usage with Pool Tags

This article was previously published under Q217140
This article has been archived. It is offered "as is" and will no longer be updated.
After you install Windows NT 4.0 Service Pack 4 on a computer running Windows NT 4.0 that already has the Microsoft Windows NT 4.0 Hardware Compatibility Test (HCT) tool (version 8.1) installed, the computer may stop responding (hang).
The HCT tool automatically enables the use of pool tags to track thread memory usage, and this feature may cause a conflict with the Ntoskrnl.exe file.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:
Microsoft has confirmed that this is a problem in Microsoft Windows NT 4.0. This problem was first corrected in Windows NT version 4.0 Service Pack 5.

Article ID: 217140 - Last Review: 11/02/2013 23:27:00 - Revision: 5.0

  • Microsoft Windows NT Server 4.0 Enterprise Edition
  • kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbenv kbfix KB217140