This document pertains to HP Pavilion and Compaq Presario Notebook computers being downgraded to Windows XP from Windows 7 or Vista. This document does not apply to Commercial Notebook or Desktop computers.
HP stopped shipping consumer notebooks with Windows XP in April, 2010. Depending on how and when you acquired your copy of Windows XP, Microsoft may no longer provide mainstream support. Mainstream support includes, but is not limited to, drivers for new hardware, updated drivers, security, fixes, patches, or updated software.
Downgrading to a retail version of Windows XP on an HP notebook computer that is under warranty voids the software portion of that warranty. The software portion of the warranty only covers the original software and operating system that shipped with the notebook. It does not cover software modifications made after purchase.
The hardware warranty is valid for the specified warranty period. However, if you have a hardware problem, you may be asked to reinstall the original operating system to verify the issue is caused by hardware failure.