Windows 10 v1511 Will No Longer Receive Security Updates
We’d like to remind you that as of Tuesday, October 10, 2017, Windows 10 devices running version 1511 will no longer receive security and quality updates from Microsoft.
As a result, any new vulnerabilities discovered on these devices will no longer receive a patch and may lead to future security risks. We recommend that you upgrade these devices to the latest version of Windows 10.
If you require any assistance please get in touch.
Microsoft Official Notification can be found here