If you would like to open Windows Explorer from a Command Prompt, here's how:

Go to Start>> Run. Type in: explorer [Enter] or click OK.

There are a number of different switches that you can use to perform different functions in Windows Explorer. Below you will see the switch and a description of its function:
1.explorer /n
This switch uses the default setting for showing only the root of the drive that Windows is installed.

2.explorer /e
This switch also uses the default setting for exposing the root drive. However, you can easily switch folders in this view as both the right and left panes are viewable.

3.explorer /e,c:\windows
In this example, Windows Explorer will open the Windows folder in the root drive.

4.explorer /e,c:\windows\fonts
This example shows that you can go a step further and open Windows Explorer with the focus on the "Fonts" folder held within the Windows folder of the root drive. Replace "fonts" with any other folder within the Windows folder that you would like to view.