Identifying your system type is also important when upgrading. If you're running a 32-bit version of Windows, upgrading to 64-bit can help unlock the full potential of your computer.

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.

There's a difference between 64-bit and 32-bit operating systems, and it involves your PC, too.

It is, though, important to know whether you are running a 64-bit or 32-bit version of Windows when performing certain tasks on your computer.

Should I use 32 bit or 64 bit? I'm only using 2 GB of RAM (and I think it only supports 4 GB at the very most) but it does support 64 bit. I've installed Windows 7 x64 and it seems quite a bit ...