You may have to press a special key (e.g., Esc, F2, F12, Del, etc.) during bootup to get the computer to boot from the USB instead of its internal hard drive. Once you have a Kali Live USB, plug it into the USB port of your Windows 10 computer and boot from the USB. Click Start Burn to create a Kali Live USB drive.
Clonezilla live is suitable for single machine backup and restore. Two types of Clonezilla are available, Clonezilla live and Clonezilla SE (server edition). It helps you to do system deployment, bare metal backup and recovery. What is Clonezilla? Clonezilla is a partition and disk imaging/cloning program similar to True Image® or Norton Ghost®.