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Windows 2000 Does Not Set Some Laptop Computers in C2/C3 State

This article was previously published under Q259425
This article has been archived. It is offered "as is" and will no longer be updated.
Windows 2000 does not place some laptop computers in the C2/C3 power-saving state. This can cause a laptop computer to exhaust its battery in a shorter time period than you expect.
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 theMicrosoft 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   ------------------------------------------------------   04/07/2000  07:24p  5.00.2195.2024  162,992  Acpi.sys				

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
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

Article ID: 259425 - Last Review: 10/26/2013 06:07:00 - Revision: 5.0

Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition

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