Select the product you need help with
- Internet Explorer
- Windows Phone
- More products
MS-DOS Compatibility Mode Problems with PCI IDE Controllers
Article ID: 151911 - View products that this article applies to.
This article was previously published under Q151911
If this article does not describe your hardware-related issue, please see the following Microsoft Web site to view more articles about hardware:
If your computer contains a Peripheral Component Interconnect (PCI) Integrated Drive Electronics (IDE) hard disk controller that employs serialization between the two IDE channels, you may experience the following behaviors:
This behavior can occur if the protected-mode driver for the hard disk controller is not properly initialized when you start Windows. When this occurs, a NOIDE value is placed in the registry which prevents Windows from making future attempts to initialize the protected-mode driver.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
NOTE: The purpose of the registry value that is mentioned in this section is to prevent damaged data. Before you modify this registry value, it is recommended that you perform the troubleshooting steps in the following Microsoft Knowledge Base article:
(http://support.microsoft.com/kb/130179/EN-US/ )Troubleshooting MS-DOS Compatibility Mode on Hard Disks
All VersionsTo cause Windows to attempt to reinitialize the protected-mode IDE driver:
If the protected-mode driver is not initialized properly, you receive an error message and the NOIDE value is re-created. Windows uses the MS-DOS Compatibility mode file system the next time that you start the computer.
Windows 98 OnlyIf you are running Windows 98 on your computer, locate the Tools\Mtsutil folder on the Windows 98 CD-ROM, right-click the Noide.inf file, and then click Install. When you do this, the NOIDE value is deleted if it exists. After you use this file, restart your computer.
This issue can occur if your computer has an IDE controller that requires serialization between the primary and secondary IDE channels. The protected-mode drivers for these IDE controllers may not be initialized if one of the following situations occurs:
Article ID: 151911 - Last Review: January 19, 2007 - Revision: 2.2