Welcome to Gauri Dutt | Tech Insights (formerly iTech Best Practices)! What will you do when any program crash or non-responding? Your first move terminate that program from the task manager. This needs to open task manager by Alt+Ctrl+Del, wait for an time being and then manully end task. This is a very common issue with the Windows operating systems. However, you can do it faster just Right-Click on Desktop and select the kill task option and done.
If you would like to know how to? so watch the video till end.