Is my PC running the 32-bit or 64-bit version of Windows?

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 the 32-bit version. Follow the steps in the sections below to find out if your PC is running the 32-bit or 64-bit version of Windows and what edition of Windows is on your PC.

Windows 10

Press the Windows   windows-brands.svg  key

Type 'About' and select the option 'About your PC'

Under Device Specifications review the System type which details whether the system is 32 or 64-bit

 

Windows Vista or Windows 7

Click the Start button Picture of the Start button, right-click Computer, and then click Properties.


If "64-bit Operating System" is listed next to System type, you’re running the 64-bit version of Windows Vista or Windows 7.

If "32-bit Operating System" is listed next to System type, you’re running the 32-bit version of Windows Vista or Windows 7.

The edition of Windows Vista or Windows 7 you're running is displayed under Windows edition near the top of the window

Windows XP

Click Start, right-click My Computer, and then click Properties.

If "x64 Edition" is listed under System, you’re running the 64-bit version of Windows XP.

If you don’t see "x64 Edition" listed under System, you’re running the 32-bit version of Windows XP.

The edition of Windows XP you're running is displayed under System near the top of the window.

 

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