Windows 10 is the only supported version of Microsoft Windows.

Do you know what version of Windows your work or home computer/PC is running?

Look at the of a computer screen below:

Unless you can see the logo, as above, in the bottom left corner of the screen, you are NOT running 10.

If you want know the specific version you are running, goto either :

Settings > System > About > Windows Specification


Control Panel > System and Security > System > Windows Edition

Windows Versions – Start Button Icons