The first option is to click on "Stop Process" on the notification popup that is displayed at the bottom right corner of the screen, while the exe is running.
A second option, in case you have disabled the notification popup, is to create a batch file that would terminate the Process.
In order to do so:
- Open an empty notepad
- Type: taskkill /f /im ExecutablesName.exe
- Save as SomeName.bat
By double-clicking this file, the running .exe will be terminated.
The termination can be automated as well, by running the batch file through a WinAutomation Process (using the "Run Application" Action).