You have a computer that runs Windows 7 Professional. You need to upgrade the computer to Windows 7Ultimate. You must achieve this goal in the minimum amount of time.  What should you do?（）

• A、Run Windows Update.
• B、Run Windows Anytime Upgrade.
• C、From the Windows 7 installation media, run Setup.exe.
• D、From the Windows 7 installation media, run Migwiz.exe.