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Windows - Unable to run the ipconfig command

Issue

I'm unable to run the ipconfig /all command, the following error message is displayed instead:
"ipconfig" is not recognized as an internal or external command, operable program or batch file.

Solution

Launch the command prompt as administrator:

Click on Start > Run.
Type the "cmd" command and press CTRL + SHIFT + ENTER to launch the command prompt as administrator.
The procedure for Windows 8 is explained here: http://ccm.net/faq/31590-windows-8-how-to-open-an-elevated-command-prompt.
From there you can run the ipconfig /all command.