The upgrade button

You are running Windows XP Professional and you’d like to upgrade directly to Windows 7 Professional. Which of these would be the best upgrade path?

A) From the Windows XP desktop, start the Windows 7 Professional setup program

B) Restart your Windows XP system with the Windows 7 Professional media in the DVD-ROM drive

C) Use the Windows 7 Upgrade Advisor to launch the Windows 7 Professional upgrade process

D) Back up your data and install a clean version of Windows 7 Professional

E) Put the upgrade media on your desk, step out for some coffee, check Reddit on your phone, and then forget what you were planning in the first place