Jaco previously requested clarification from you and had already directed you to the HP Compaq dc7800 Small Form Factor - System BIOS Update (786F1 BIOS) v1.32. This update provides no Windows 8 compatibility or functionality enhancements for your computer. Depending on the operating system you are currently running, please use the Windows 8 Upgrade Assistant or the Windows 8.1 Upgrade Assistant to check if your programs and devices are compatible with Windows 8 / 8.1
If you have any further questions, please don't hesitate to ask.
Please click the White KUDOS "Thumbs Up" to show your appreciation