How To Know if My Windows 10 Computer is 64-bit or 32-bit
The terms 32-bit and 64-bit refer to the way a computer’s processor (also called a CPU), handles information. The 64-bit version of Windows handles large amounts of random access memory (RAM) more effectively than a 32-bit system.
View the System Information window
If you are running a 32-bit version of Windows 8, x86-based PC is displayed in the System type field under the Item heading.