If you want to check another PC or if you want find out more about this PC, try the following steps.
On the Start screen, type Computer, press and hold or right-click Computer, and then tap or click Properties.
Look under Windows edition for the version and edition of Windows that your PC is running.
Here's what the Start screen looks like in Windows 8 or Windows RT.
Here's what the Start menu looks like in Windows 7 and Windows Vista.