When you start a Windows Server 2003 R2-based computer, the Windows Server 2003 R2-based computer crashes if the FSRM component and many SCSI LUN storage objects are installed

Consider the following scenario. You have a Windows Server 2003 R2-based computer. Additionally, the File Server Resource Manager (FSRM) component and many SCSI logic unit number (LUN) storage objects are installed. In this scenario, when you start the Windows Server 2003 R2-based computer, the Windows Server 2003 R2-based computer crashes. The Windows Server 2003 R2-based computer continuously displays the black screen that has the Windows Server 2003 logo and the gray loading bar.

However, you can start the Windows Server 2003 R2-based computer successfully in safe mode. If you uninstall the FSRM component or if you disable the Datascrn.sys driver in safe mode and then you restart the computer, the Windows Server 2003 R2-based computer starts successfully.

Note To disable the Datascrn.sys driver, change the value of the following registry entry to 4:

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, the computer must be running Windows Server 2003 R2 or Windows Server 2003 R2 with Service Pack 2.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2003 R2, x86-based versions

Windows Server 2003 R2, x64-based versions

Windows Server 2003 R2 with Service Pack 2, x86-based versions

Windows Server 2003 R2 with Service Pack 2, x64-based versions

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: