You can check your version of Windows 10 by clicking the Start icon in the lower left of the screen, click the gear icon (Settings) then Update and Security then on the right "OS build info". You should get a screen similar to that above. See the version and date under Windows Specifications.
You will need the May 2019 Update (or better) to get the features used in this article. Directly upload the update by going to https://www.microsoft.com/en-us/software-download/windows10. Click the Update now button to get the update. This saves time over looking to update from the Settings.
When complete, check the OS version again as described at the top of this page and ensure it is 18362.145 or higher.