Yes, customers can downgrade to Windows 7, but Microsoft has different terms regarding users’ downgrade rights and paths. HP recommends customers check with Microsoft for the terms governing their specific operating system edition.
Customers who are able to and choose to downgrade their HP Windows-8 compatible products to Windows 7 will remain protected by HP product warranties. However, HP has not tested all Windows 8 platforms for Windows 7 and we may not have your particular drivers available. If you choose to install a different operating system (OS) and have a problem that requires HP support, you may need to restore the original OS to fully diagnose your problem. Please check with HP Customer Care for questions related to your specific product.