How to determine if Windows OS is 32-bit (x86) or 64-bit (x64)

Some Western Digital programs and applications come in two versions. Usually titled 64-Bit or 32-Bit, these programs are generally identical to each other but either do not function properly when installed on the wrong version of the operating system, or will not install at all.

Note:
If a PC has more than 4 GB of RAM installed, it most likely is using the 64-bit version of Windows.


To determine what version of Windows Operating System (OS) is installed on a computer, please select an operating system below for specific instructions:

Operating System
Instructions
Windows 10 Click here for Instructions
(instructions will appear below this table)
Windows 8.1 Click here for Instructions
(instructions will appear below this table)
Windows 8 Click here for Instructions
(instructions will appear below this table)
Windows 7, Windows Vista, or Windows XP Click here for Instructions
(instructions will appear below this table)

Please select an Operating System (OS) from the table above to display instructions for your specific OS.


In case the answer did not answer your question, you can always visit the WD Community for help from WD users.

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