Windows 10 extended Security Update Enrollment Hit by Critical Flaw
A significant issue has emerged with the Windows 10 Extended Security Update (ESU) program, preventing some users from successfully enrolling their devices. This failure directly blocks the delivery of crucial security updates, leaving systems vulnerable.
Microsoft has swiftly responded by releasing an out-of-band update to address the enrollment problem. Affected users must now install this emergency update, re-enroll their device, and then the November 2025 security update for Windows 10 should become available.
This isn’t the first hiccup with the Windows 10 ESU rollout. Previously, some enrolled devices incorrectly displayed out-of-support warnings after the October security update. Fortunately, those devices continued to receive updates while Microsoft developed and released a fix (KB5068781) to resolve the misleading notifications.
However, the current enrollment failure is far more serious. It actively prevents security updates, unlike the earlier issue which was merely a display error.This necessitates the immediate out-of-band update to restore protection.
Here’s a quick breakdown of what you need to do:
* Install the emergency update: This is the first and most critical step.
* Re-enroll your device: After the update, you’ll need to go through the enrollment process again.
* Verify update availability: Once enrolled, confirm that the November 2025 security update is offered to your system.
I’ve found that proactively checking your enrollment status after applying the update is a good practice. It ensures everything is configured correctly and you’re receiving the security protections you expect.
This situation highlights a concerning oversight by Microsoft. Despite ample time knowing Windows 10 support would end, the enrollment system wasn’t adequately tested before launch. Here’s what works best: thorough testing is paramount when deploying critical security infrastructure, especially for a widely used operating system.
This initial rocky start to the ESU program underscores the importance of vigilance and prompt action from both Microsoft and its users. Maintaining a secure computing environment requires constant attention and a commitment to addressing issues swiftly and effectively.








