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You open the Power Options item in Control Panel on a Microsoft Windows XP-based computer. However, the power scheme options that appear on the Power Schemes tab are unavailable.
This issue may occur if some or all the registry entries that are related to the power scheme options have been deleted.
To resolve this issue, restore the registry entries that are related to the power scheme options. To do this, use one of the following methods.
Note To use Method 1 or Method 2, you must have Windows XP Service Pack 2 (SP2) installed. These methods use the the Powercfg.exe utility. The the Powercfg.exe utility is included in Windows XP SP2. For more information about how to obtain Windows XP SP2, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322389/ )How to obtain the latest Windows XP service pack
Method 1: Use the Powercfg.exe utility to restore the default power schemeYou can use the Powercfg.exe utility to copy the power scheme from the Default Userprofile to the user who is currently logged on. You can do this because power schemes are uniquely associated with individual user accounts. To copy the power scheme from the default user by using the Powercfg.exe utility, follow these steps:
Method 2: Use the Powercfg.exe utility to import a power scheme from another Windows XP installation.You can use the Powercfg.exe utility to export power schemes from a parallel Windows XP installation or from another Windows XP computer and to import to the original Windows XP installation. To do this, follow these steps:
(http://support.microsoft.com/kb/324347/ )How to use Powercfg.exe in Windows Server 2003
Method 3: Perform an in-place upgrade of Windows XPFor more information about how to perform an in-place upgrade of Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/315341/ )How to perform an in-place upgrade (reinstallation) of Windows XP
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