Not sure if your installed version of Windows is 32-bit or 64-bit? One quick way to tell is by looking at information about your operating system installation in Control Panel.

The promise of an easy transition between 32-bit and 64-bit editions of Windows is easing the minds of many users, but PC vendors and the major software houses may see things differently.

Finding out whether you're using the 32-bit or 64-bit version of Internet Explorer in Windows 8 is as simple as finding out which version of Windows you're using.

Your new computer has a 64-bit processor, but your software probably is still 32-bit. Why haven't software developers done more about it?

The most concrete news to come out of Microsoft’s well-executed leak of a few sparse details about the next version of Windows is that it will continue to come in both 32- and 64-bit editions.