Microsoft KB Archive/309646

= Windows Does Not Again Disable a &quot;Disabled Device&quot; After Wake Up from Hibernation =

PSS ID Number: 309646

Article Last Modified on 11/20/2003

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The information in this article applies to:


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

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This article was previously published under Q309646



SYMPTOMS
When you start Windows 2000 after you disabled one or more devices in Device Manager, put your computer into hibernation and then wake it up, another device that used to work normally may become unavailable.



CAUSE
This behavior can occur because Windows 2000 does not again disable &quot;disabled devices&quot; by using Device Manager when your computer wakes from hibernation.



STATUS
This behavior is by design.



Example of This Behavior
You want to use Device Manager to disable your infrared device to avoid unnecessary infrared communications. During your computer BIOS POST process, the infrared device is initialized and holds the hardware resource. Later, the Windows disables the infrared device, and then frees the resource that the infrared device holds. When the computer resumes from hibernation, it first goes through the BIOS POST process, and the infrared device is enabled. This means it occupies some resource at hardware level. However, Windows 2000 does not disable the infrared device over again upon waking from hibernation. Because of this, Windows presumes that the resource that belongs to the infrared device is free. This could cause Windows to allocate a resource that is not free (such as an IRQ) to another device. When this occurs, it may cause a resource conflict.

Keywords: kbenv kbprb kbui KB309646

Technology: kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Pro kbwin2000ProSearch kbwin2000Search kbwin2000Serv kbwin2000ServSearch kbWinAdvServSearch

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