Windows 10 receives final non-security update addressing SMBv1 and Autopilot enrollment issues

Microsoft has officially rolled out the September 2025 non-security updates for Windows 10, just weeks away from the end of its mainstream support. The update, identified as KB5066198 and featuring the build number 19045.6396, contains two crucial fixes aimed at enhancing system stability and functionality.

What’s Included in Update KB5066198?

This update primarily addresses known issues related to the Server Message Block version 1 (SMBv1) protocol and the Autopilot Enrollment Status Page (ESP).Below are the key changes included:

[SMBv1 Protocol Connectivity Issues:] Resolved an issue whereby users faced difficulties connecting to shared files and folders while utilizing the SMBv1 protocol over NetBIOS (NetBT) after applying the previous update, KB5065429.

[Autopilot Enrollment Status Page (ESP) Fix:] Fixed a problem where devices deployed using Windows Autopilot with the configured ESP encountered failures in loading during the Out-of-Box Experience (OOBE).

How to Download the Update

You can easily download KB5066198 by navigating to Settings > Update and Security > Windows Update to check for the latest updates. Alternatively, for manual retrieval, visit the Microsoft Update Catalog through this link.

What Lies Ahead for Windows 10 Users?

This release may mark the final non-security update for Windows 10, as the operating system is set to exit mainstream support on October 14, 2025. Post this date, Microsoft will only provide extended security updates to users participating in a designated program. Standard users can expect to receive security-only updates for an additional twelve months at no cost. In contrast, commercial customers will incur fees for each device, with options for receiving extra patches available for up to three years.

For organizations or individuals seeking extended security coverage beyond this duration, third-party solutions, such as projects like 0patch, can offer security updates for an impressive five years.

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