KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q163507: Trap 0x00000024 Occurs During the Autochk Sequence at Boot

Article: Q163507
Product(s): Microsoft Windows NT
Version(s): winnt:4.0
Operating System(s): 
Keyword(s): kbhw kbHardware
Last Modified: 09-AUG-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows NT Workstation version 4.0 
- Microsoft Windows NT Server version 4.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

You cannot boot with the removable media in a drive.

CAUSE
=====

This problem occurs because an I/O Request Packet (IRP) is stuck in the
Driver\Disk, causing disk corruption. The Class2.sys file relies on the I/O
system to complete its synchronous requests. These requests may never finish if
Asynchronous Procedure Calls (APCs) are blocked. This will only occur when
removable media is present during the boot process.

RESOLUTION
==========

Install the new Class2.sys driver, which no longer relies on the I/O system to
complete its synchronous requests.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 4.0. This has
been corrected in the latest U.S. Service Pack for Windows NT version 4.0. For
information on obtaining the Service Pack, query on the following word in the
Microsoft Knowledge Base (without spaces):

  S E R V P A C K


Additional query words: prodnt removable media

======================================================================
Keywords          : kbhw kbHardware 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400
Version           : winnt:4.0

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.