Run WinVer.exe to determine your version of Windows 10
Check it against this list https://technet.microsoft.com/en-us/windows/release-info.aspx
Want to upgrade? – visit here https://www.microsoft.com/en-us/software-download/windows10 – [update now]
Run the file you just downloaded – Then click [update now]
Quick check to ensure you still meet the minimum requirements – click [next]
Then sit back and relax!
Want a ah hem licence – visit here https://www.groovypost.com/howto/download-windows-10-free/ or https://www.microsoft.com/en-gb/accessibility/windows10upgrade