Press the Windows key (at the bottom of the keyboard, looks like four squares) and R key at the same time to open the Run dialog box. Type in “winver.” Click OK. A window should open called About Windows that tells you which operating system you are using.
What operating system do we use?
The three most common operating systems for personal computers are Microsoft Windows, macOS, and Linux. Modern operating systems use a graphical user interface, or GUI (pronounced gooey).
Which operating system I am using now?
Select the Start button > Settings > System > About . Under Device specifications > System type, see if you’re running a 32-bit or 64-bit version of Windows. Under Windows specifications, check which edition and version of Windows your device is running.