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, please see the Windows lifecycle fact sheet.
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.