Been double clicking both 'cmd' and 'Command Prompt' on start menu, running on administrator on both, use the Run tool and used /k (cmd /k) on a Windows 7 machine, but everytime I'm opening it the windows closes in a second or so, not giving me enough time to write barely a word. Trying to make a repair usb which requires me to write a number of commands. So any suggestions on what's the problems? Thanks for your time.
Open windows explorer and right click your C: drive while holding the shift key down. The menu should include the option "Open command window here". Select that, and you should be in a command prompt window on the root of C:.