A+ Pop Quiz: Make it so Which of the following would be the best way to upgrade a computer from Windows 8.1 Enterprise x64 to Windows 10 Enterprise x64? A) Insert the Windows 10 installation media and run the setup from the Windows 8.1 desktop B) Perform a Custom (Advanced) installation of Windows 10 C) Use the Windows 10 Upgrade Checker D) Backup all personal files, perform a fresh install of Windows 10, and restore all personal files E) Use the Windows Upgrade Assistant F) It's not that Enterprise