Hi, Beware of using Kill Process if you are using a machine that is used by multiple Robots, and in that case you would need to kill it per user… solutions found here: Print all processes - #14 by ClaytonM
Otherwise, the normal Kill Process should work ok as mentioned above.
If you want to soft kill it, which works just as well, let me recommend that you use a Do While with Element Exists, so you pick up each window.
For example see pseudocode:
Do
Element Exists with selector of window
If element exists then close window with same selector
While element exists
Regards.