One quick way to tell is by looking at information about your operating system installation in Control Panel.
However, the specific steps involved depend a lot onwhich operating system you’re using.
Windows 11, 10, 8, 7 & Vista: 64-Bit or 32-Bit?

‘Program Files’ Folders in Windows 10 64-bit.
With that menu open, selectSystemand then skip to Step 4.
ChooseSystem and Securitywithin Control Panel, orSystem and Maintenanceif you’re on Windows Vista.
You won’t see aSystem and Securitylink in Control Panel if your view is set to eitherLarge iconsorSmall icons.

If so, selectSystemand then skip to Step 4.
This screen can also be opened by executing thecontrol /name Microsoft.Systemcommand from Run or Command Prompt.
Find theSystemarea, located under the large Windows logo.

Within there, next toSystem key in, it will say either64-bit Operating Systemor32-bit Operating System.
The second bit of information, eitherx64-based processororx86-based processor, indicates the hardware architecture.
Windows XP: 64-Bit or 32-Bit?

TheGeneraltab in System Properties provides all the details.
SelectStartand then chooseControl Panel.
If you don’t see this link, openSystemand then go down to Step 4.

‘Program Files’ Folders in Windows 10 64-bit.
Locate theSystemarea to the right of the Windows logo.
You should be on theGeneraltab in System Properties.
If you have either of these editions of Windows XP, you’re running a 32-bit operating system.

‘Program Files’ Folder in Windows 10 32-bit.
Now you know if you’re running Windows XP 64-bit or 32-bit.
However, 32-bit versions of Windows have just one folder, since they canonly install 32-bit programs.
If there are two “Program Files” folder, you’re for sure using a 64-bit version.

you’ve got the option to also use thedir commandin Command Prompt to view these folders.
Just confirm to execute the command from therootof the C drive.
Is Windows 64-bit or 32-bit?
If you’re running Windows XP, chances are it’s 32-bit.
All Windows 11 installations are 64-bit.
Of course, this isn’t something you want to take a guess at.
FAQ
Thedifference between Windows 32-bit and 64-bitis processing power.
A 64-bit processor can handle more data simultaneously, so it’s more capable overall.
Most new processors are based on the 64-bit architecture and are fully compatible with 32-bit operating systems.
To run 32-bit applications on 64-bit Windows, right-smack the software and go toProperties>Compatibility.
SelectRun this program in compatibility mode forand choose the version in which you want to launch the program.
Download the Windows Media Creation Tool to create a 64-bit Win 10 installation flash drive.
Shut down your box, plug in the flash drive, and follow the Windows setup prompts.