Microsoft KB Archive/299713

= Intel SpeedStep v1.1 Is Not Included for Pre-Windows 2000 Upgrades to to Windows XP =

Article ID: 299713

Article Last Modified on 7/26/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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This article was previously published under Q299713



SYMPTOMS
After you perform an upgrade to Windows XP, the Intel SpeedStep v1.1 program is missing or disabled. In the upgrade report, the Intel SpeedStep program is listed as being incompatible with Windows XP.



CAUSE
This behavior occurs because VxDs are not supported in Windows XP and it is recommended that you do not reinstall the program after the upgrade.



STATUS
This behavior is by design.



MORE INFORMATION
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

The Intel SpeedStep v1.1 functionality is now supported natively in Windows XP and is no longer supported in Microsoft Windows 2000. The VxD version was disabled in versions of Windows that were released earlier than Windows 2000. In Windows XP, support for setting the processor's performance level, dependent on the compatibility of the BIOS, is included; therefore, the SpeedStep program is not necessary.

For more information on Intel SpeedStep Technology, refer to the following Intel Web site:

http://www.intel.com/cd/channel/reseller/apac/zho/support/support_faq/tech/35967.htm

Keywords: kb3rdparty kbprb kbsetup KB299713

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