Press and hold the Windows key and the Pause key. In the System window, next to System type, it lists 32-bit Operating System for a 32-bit version of Windows, and 64-bit Operating System if you’re running the 64-bit version.
Press and hold the Windows key and the Pause key. In the System window, next to System type, it lists 32-bit Operating System for a 32-bit version of Windows, and 64-bit Operating System if you’re running the 64-bit version.