Command prompt at windows explorer window

How to open a command prompt at the current folder open in Windows File Explorer Window:

Type 'cmd' in the navigation path area of the window.

From a command prompt, open a Windows File Explorer window at the current drive/directory in the command prompt:

In the command prompt window, type "Start ." and press enter.
Be sure to include the period.

Reference: https://mspoweruser.com/tip-i-wish-i-knew-this-windows-10-command-prompt-tip-years-ago/