Your processor (CPU) architecture can be either 32-bit (x86), 64-bit (x64), or ARM.
This tutorial will help show you how to check if you have a 32-bit, 64-bit, or ARM based processor CPU architecture in Windows 10.
Here are 2 easy ways to do this
Settings
Click on the start button and then click on the settings icon
Open Settings,and click on the System icon.

windows settings
Click on About on the left side.
Under Device specifications on the right side, look to see if your System type shows either a x86-based processor, x64-based processor or an ARM-based processor.

device specs
Command Prompt
Open a command prompt.
Copy and paste echo %PROCESSOR_ARCHITECTURE%
into the command prompt, and press Enter.

cmd processor
Check to see if your output shows x86 (32-bit), AMD64 (64-bit), or ARM64 on the command line