Microsoft KB Archive/815918

= Mouse Does Not Function After You Start Windows XP =

Article ID: 815918

Article Last Modified on 12/25/2006

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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SYMPTOMS
When you start your computer, the mouse may not be available.



CAUSE
This may occur when you have upgraded a Hewlett Packard (HP) Pavilion series computer to the Microsoft Windows XP operation system. Not all HP Pavilion series computers are compatible with the Windows XP operating system, and installing Windows XP can cause odd behaviors and errors to occur.



RESOLUTION
You must remove the Windows XP operating system and restore the original operating system for the HP Pavilion computer. For additional information about removing the Windows XP operating system, click the following article number to view the article in the Microsoft Knowledge Base:

303661 How to Uninstall Windows XP and Revert to a Previous Operating System



MORE INFORMATION
For more information about Windows XP compatibility with HP Pavilion series of computers, visit the following HP Web site to view the &quot;HP Pavilion Desktop PCs - Microsoft Windows XP Support Statement&quot;:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06783&lc=en&cc=us&dlc=en&product=58757&rule=42#

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.

