You use Windows 7 (32-bit) on your client computer. You create a complete backup of the client computer.
You need to install Windows 8.1 Pro (64-bit) on the computer.
What should you do?
A.
Install Windows 8.1 Pro 64-bit on the existing volume by performing an upgrade installation.
B.
Install Windows 8.1 Pro 64-bit on the existing volume by performing a custom installation.
C.
Install Windows 8.1 Pro Pack.
D.
Install Windows 8.1 into a virtual hard disk (VHD) file.