Doing a hard reset isn’t as healthy for your computer’s internal components, this method would be preferable if possible.
There are two ways you can bring up Task Manager:
Hit Ctrl+Alt+Del and click on Task Manager. Hit Ctrl+Shift+Esc to bring up Task Manager
Once you are in Task Manager, you can restart a hung process in the processes list, or you can click on Shutdown \ Restart to restart your computer.
Pretty simple tip, but very useful