Windows 10 update 1511 failed. Windows Update offered the Windows 10 1511 update. Immediately after downloading was complete, it showed a message that the update failed, checked for updates again, and told me that no updates are available. Since then the update is never offered again.
Microsoft is directing users to its Windows 10 Software Download page, which has been updated with the newest OS version (November update). Select Upgrade now to upgrade your PC to Windows 10 Version 1511, which includes the November update.