You received a notification because your device is running an older version of Windows 10. To continue to receive security updates and enjoy the latest features Windows 10 has to offer, you need to update your device to a newer version of Windows 10.
Visit the Software Download site, and select Update now to manually update your device.
If you continue to use your current version, your computer will still work, but since you won’t continue to receive new security updates, it could become more vulnerable to security risks and viruses. To learn more about end of service for Windows 10, version 1507, review the frequently asked questions.