Hi:
HP only supports its new consumer PC's for Windows 8.
Folks wanting support and drivers for other windows operating systems need to purchase a HP business PC.
I should be able to help you find the most of the drivers you need though, but we may have some fits and starts.
First is the chipset driver.
You'll have to tell me what graphics adapter came with the PC because there were several options.
Audio: That is going to be a problem. You can try this driver and hope it works.
Try this usb 3 controller driver:
Network: Download and install the 3rd one on the list.