I needed to run the command line in Windows XP as the administrator, something that I couldn’t just do by right clicking the Command Prompt in Accessories and selecting Run As Administrator, as you can in Vista or Windows 7. (I wanted to run the sfc.exe, and to do this it needed full administrator access). The quick way to do it, assuming you are logged in as a user with ordinary administrator or power user rights, is to go to the start menu, select Run…, type in CMD and press CTRL-SHIFT-ENTER on the keyboard. The command prompt shell will appear as normal, but you will find that you can issue commands that were previously restricted.