Trap 0x00000024 Occurs During the Autochk Sequence at Boot (163507)


The information in this article applies to:

  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Server 4.0
This article was previously published under Q163507

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

Modification Type:MajorLast Reviewed:8/9/2001
Keywords:kbHardware KB163507
©2002 Microsoft Corporation. All rights reserved.