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You use a computer that has Windows 7 Professional (32-bit) installed.
You need to migrate the computer to Windows 8.1 Pro (64-bit).
Which installation method should you use?
A. Download and run Windows 7 Upgrade Advisor.
B. Download and run Windows 8.1 Upgrade Assistant.
C. Start Windows 8.1 custom installation from a DVD.
D. Open Windows Anytime Upgrade.
Correct Answer: C
Explanation/Reference:
http://windows.microsoft.com/en-us/windows-8/upgrade-to-windows-8 Update to Windows 8.1: FAQ
Can I update from a 32-bit version of Windows to a 64-bit version of Windows 8.1? If your PC has a 64-bit capable processor (CPU) but is currently running a 32-bit version of Windows, you can install a 64-bit version of Windows 8.1, but you’ll need to buy it as a DVD and perform a clean installation. You won’t be able to keep any files, settings, or apps when you update from a 32-bit to a 64-bit version.
