Start with Unibeast 8.0 all fine to Language selection

[LVLO]

On 8460p (HP) when I arrive to language selection for installation, I can't select, keyboard and mouse are off and there are not USB port usable (only one usb 2.0 with USB key to start)

 

[RehabMan]

On 8460p (HP) when I arrive to language selection for installation, I can't select, keyboard and mouse are off and there are not USB port usable (only one usb 2.0 with USB key to start)

Your laptop has a guide:
https://www.tonymacx86.com/threads/...book-zbook-using-clover-uefi-hotpatch.232948/