Kill process tree
The Kill Process Tree action allows you to forcibly terminate a process and all of its descendants. This is useful when an application launches multiple processes and you want to terminate them. For example, Google Chrome launches many chrome.exe processes, one for each browser tab:
To terminate all processes at one, right click the parent chrome.exe process and select Kill Process Tree:
For this action to be available, Procexp must be in the process-tree sorting mode.