Microsoft Releases First Windows 10 ESU Update and Emergency Fix for Enrollment Bug
An out-of-band update fixes the enrollment wizard failure that blocked some PCs from joining Extended Security Updates.
Overview
- KB5068781 is the first cumulative update for Windows 10 ESU and includes November Patch Tuesday fixes for 63 vulnerabilities, including one actively exploited elevation-of-privilege flaw.
- Microsoft issued KB5071959 as an out-of-band update to resolve the ESU enrollment wizard failure; affected users should install it, reboot, complete ESU enrollment, then check Windows Update for security patches.
- KB5071959 appears only on devices unable to enroll in ESU and is unnecessary for PCs already enrolled or already offered KB5068781.
- After KB5068781, Windows 10 ESU moves to build 19045.6575 and Windows 10 Enterprise LTSC 2021 moves to build 19044.6575, with a fix for incorrect end-of-support warnings on LTSC devices.
- Windows 10 reached end of support on October 14, 2025, and consumers can enroll in ESU via a $30 option or free methods like Microsoft Rewards points or Windows Backup, with additional free routes for EEA home users; enterprise pricing increases annually for up to three years.