Microsoft KB Archive/321420

= &quot;Stop 0x0000000A&quot; Error Message and Computer Stops Responding When You Use Dial-up RAS Connection =

Article ID: 321420

Article Last Modified on 9/14/2007

-

APPLIES TO


 * Microsoft Windows 2000 Standard Edition

-



This article was previously published under Q321420



SYMPTOMS
When you use a dial-up remote access service (RAS) connection to browse the Internet or to connect to a corporate network, your computer may stop responding (hang) and return a Stop error (an error on a blue screen) similar to the following:

STOP: 0x0000000A (0xC104027E, 0x00000002, 0x00000000, 0x804A5DE6)

IRQL_NOT_LESS_OR_EQUAL



CAUSE
This problem may be caused by the Winacpci.sys driver that is supplied by your modem manufacturer. For additional information about the Winacpci.sys driver, please contact your modem manufacturer.



RESOLUTION
To resolve this issue, disable the Winacpci.sys driver by using the Recovery Console. To do so, follow these steps:
 * 1) Start your computer with the Windows 2000 boot disks, or with the Windows 2000 CD-ROM if your computer can start from the CD-ROM drive.
 * 2) In the Welcome to Setup screen, press R to repair the Windows 2000 installation.
 * 3) In the Windows 2000 Repair Options screen, press C to use the Recovery Console.
 * 4) Select the Windows installation that you want to log on to by typing the number of the installation and then pressing ENTER.
 * 5) Type the Administrator password for your computer, and then press ENTER.
 * 6) At the prompt, type cd system32, and then press ENTER.
 * 7) Type listsvc, and then press ENTER.
 * 8) Locate the Winacpci.sys driver in the list that is provided.

WARNING: Make sure that you locate the Winacpci.sys driver in the list that is provided. Using the wrong file in the following steps may result in more problems.
 * 1) Type disable Winacpci.sys, and then press ENTER.

NOTE: The Disable command prints the old start_type values of the service before it resets the service to SERVICE_DISABLED. Record the old start_type information, in case you have to restore the service later.
 * 1) Type exit.

The computer restarts automatically. Allow the computer to start normally.

WORKAROUND
The Winacpci.sys driver that this article mentions comes from the modem manufacturer. To possibly work around this problem, use the Windows 2000 version driver. Windows 2000 includes the Winacpci.sys driver in the I386\driver.cab file with a date of Friday, September 24, 1999, 11:55:30 PM.

To use the Windows 2000 Winacpci.sys driver, follow these steps:
 * 1) Right-click My Computer, and then click Manage.
 * 2) Click Device Manager, locate the modem, and then right-click it.
 * 3) Click Update Driver.

Follow the on-screen instructions. Windows finds and installs the driver from the Windows 2000 CD.



MORE INFORMATION
For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base:

229716 Description of the Windows 2000 Recovery Console

Keywords: kberrmsg kbprb KB321420

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.