Instructions to check whether you have a 32-bit or 64-bit Windows operating system

32-bit / 64-bit

How can I tell if my computer is running a 32-bit or a 64-bit version of Windows?

To find out if your computer is running 32-bit or 64-bit Windows, do the following:

1) Click the Start button

2) Click Control Panel

3) Click System and Maintenance

4) Then Click System.

• Under System, you can view the system type.

Printable Instructions

• Quick Reference Guide:How to find out if your computer is 32 or 64 bit. (pdf)
• Quick Reference Guide:How to find out if your computer is 32 or 64 bit. (doc)