Microsoft released an out-of-band emergency update, KB5071959, for Windows10 devices on 2025-11-11. This update addresses a crucial enrollment bug in the Consumer Extended Security Updates (ESU) program.
Security Enrollment Bug Details
The error impacted Windows10 users unable to join the ESU program post end-of-life, particularly those in Europe. Users encountered messages like "Something went wrong" during enrollment.
- KB5071959: Resolves a critical ESU enrollment issue.
- Released: On 2025-11-11, with November's security updates.
- Scope: Affects Windows10 users not previously enrolled in ESU.
- Region Highlight: Notably affected Europe.
- Recommendation: Immediate installation necessary.
Installation and Future Updates
To install KB5071959, users should navigate to Windows Update settings, select Check for updates, and install the update. A device restart is required post-installation. Users must also enroll in the ESU program using the wizard to continue receiving updates.
This emergency release coincides with November's critical security updates, emphasizing the urgency for all affected users to act promptly to secure their systems.
