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Manage Native Processor Performance Control (Windows XP) Popular

Windows includes built-in processor performance control to manage the microprocessor so it is more efficiently utilized. This tweak allows you to modify this feature.

This tweak can be easily applied using WinGuides Tweak Manager.
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Open your registry and find the key below.

Create a new DWORD value, or modify the existing value, called 'HackFlags' and edit the value according to the settings below.

  • 0 = disable native XP support
  • 1 = use settings inherited from Intel software during XP upgrade
  • 5 = system can support all modes when running on battery

Restart Windows for the change to take effect.

Note: This tweak only applies to processors with either Intel SpeedStep or AMD PowerNow! processor performance control technologies.

Registry Editor Example
|(Default)REG_SZ(value not set)|
|HackFlagsREG_DWORD0x00000001 (1)|
Registry Settings
System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\P3\Parameters]
Value Name: HackFlags
Data Type: REG_DWORD (DWORD Value)

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Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last modified: March 21, 2002