Ubuntushop's kali Live and reinstall option.
1) You can start a live Kali os , loaded in ram, to do your tasks without leaving anything on the internal harddrive.
2) You can start the Kali reinstaller to do a clean install of Kali os on your harddrive.
Search in the menu for Kali-live and start the program.
Ofcourse, root or sudo password needed.
Choose to start a Kali Live Session or to the Kali-reinstaller
The program will download the latest Kali Os, after download is complete, the system will reboot in Kali Live or Kali reinstaller.
Have a nice day.