You need to install Windows 7 over an existing version of Windows.
Which type of installation should you use to retain all your files, settings, and programs on your computer?
A. Use the Windows Easy Transfer tool, and select Custom (advanced).
B. Use the Windows 7 installation disk to perform a system repair.
C. Use the Windows Easy Transfer tool, and select Upgrade.
D. Use the Windows 7 installation disk to perform a clean installation.
