1. Swipe up from the bottom of the Start screen and then touch the All apps icon. If you have a mouse, right-click anywhere on the Start screen and then click on All apps.
Note: If you’re using a keyboard, see Tip #1 below for a really quick way to open a Command Prompt window in Windows 8.
2. Now that you’re on the Apps screen, swipe or scroll to the right and locate the Windows System section heading.
3. Under Windows System, press or click on Command Prompt.
A new Command Prompt window will open on the Desktop.
4. You can now execute whatever command you needed to run.