Which version of the OS can be upgraded to 64 bit Windows 10 Pro?
- 64-bit version of Windows XP Pro
- 32-bit version of Windows 10 Pro
- 32-bit version of Windows 8 Pro
- 64-bit version of Windows 7 Home
Answers Explanation & Hints: A 32-bit OS cannot be upgraded to a 64-bit OS. Windows XP and Windows Vista cannot be upgraded to Windows 10.