How to Check Windows Version on Laptop or PC

Learn how to check windows version present in your laptop or PC.
Different laptops and computers present in the market have different windows versions installed in it. It is necessary to learn how to check which windows version is installed in your laptop so if it old one you can update it to the new one so that your laptop or PC is up to date.
This tutorial works for all laptops, desktops, tablets and computers running on windows operating system.