Microsoft KB Archive/253246

= Hewlett-Packard T-10 Server Hangs on Boot =

Article ID: 253246

Article Last Modified on 2/20/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q253246



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
After you install Windows 2000 on a Hewlett-Packard (HP) T-10 server, the server may stop responding (hang) at startup.



CAUSE
Windows is not turning off write combining on the computer.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:   Date      Time    Version         Size     File name ---  4/21/00   7:03p   5.0.2195.2055   50,544   Videoprt.sys



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.



MORE INFORMATION
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To use the hotfix:  Restart the computer in Safe mode. Disable write combining:  Start Registry Editor (Regedt32.exe). Add the following key in the registry:

HKLM\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\DisableUSWC

Note that a value is not required for this key.

</li> Restart the computer.</li></ol> </li> Install the hotfix.</li> Remove the DisableUSWC key from the registry.</li></ol>

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Keywords: kbhotfixserver kbqfe kbbug kbfix kbwin2000presp2fix KB253246

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