Some versions of Windows 10 display a notification to install the latest version
End of servicing notification for Windows 10 Versions 1507, 1511, and 1607
If you have a device that’s running Windows 10 versions 1507, 1511, or 1607, a full-screen, end-of-servicing notification might appear on your device.
The notification shows the end-of-service date for your version of Windows 10. For more details about the end-of-service date for your version of Windows 10.
Versions of Windows 10 that are listed as “end of service” have reached the end of their support period and will no longer receive security updates. To keep Windows as secure as possible, Microsoft recommends that you upgrade to the latest version of Windows 10.
If you’re currently running Windows 10, version 1507, 1511, 1607, 1703, 1709, or version 1803, you can expect to receive a notification that states that your device must have the latest security updates installed and then offers to update your device.