i startedthe kuka usb recovery i guess is a software that i have to find somewhere cracked and mount it in my usb stick?or it is a free softwaRe that you can recomend to me a link to download it?
You can download it at Kuka Xpert, but you need an original Kuka USB stick, because the robot only boots from the original sticks, so it's useless. Otherwise you also could use a different bootstick (like Ghost, Acronis, or wathever).
But you can remove the hard disk from the cabinet attach it to a SATA-USB converter and use backup software of your choice.