Please enter your product number to find out if HP has tested your computer with Windows 8.
If HP has tested your computer with Windows 8 and it can be upgraded, you will be provided with upgrade instructions to print out before you begin your upgrade.
You can find your Product Number, sometimes described as your "vendor item number", on your receipt, on a label on the bottom of your notebook, under the battery of your notebook, or on the back of your desktop PC or workstation. You can also find your product number by running the HP Support Assistant tool on your PC.
Product numbers are 7-11 characters in length and typically include a hash/pound sign (#), followed by 2-3 characters.