DOCUMENT:Q217140  16-MAY-2002  [winnt]
TITLE   :Computer Does Not Boot When Tracking Memory Usage with Pool Tags
PRODUCT :Microsoft Windows NT
PROD/VER:winnt:4.0,4.0 SP4
OPER/SYS:
KEYWORDS:kbenv kbWinNT400sp5fix

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The information in this article applies to:

 - Microsoft Windows NT Server, Enterprise Edition versions 4.0, 4.0 SP4 
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SYMPTOMS
========

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).

CAUSE
=====

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.

RESOLUTION
==========

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:

 - http://www.microsoft.com/Windows/ServicePacks/

-or-

 - Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

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:

   http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS



STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Windows NT 4.0. This
problem was first corrected in Windows NT version 4.0 Service Pack 5.

Additional query words:

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Keywords          : kbenv kbWinNT400sp5fix 
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400sp4 kbWinNTSEnt400 kbWinNTS400search
Version           : winnt:4.0,4.0 SP4
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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