Microsoft has released the September 2025 non-security updates for Windows 10, just a few weeks before the end of support. KB5066198 with build number 19045.6396 is now available for download with only two fixes. One addresses a known issue with the SMBv1 protocol connection issues, and one fixes a bug with the Autopilot Enrollment Status Page.
Here is the changelog:
- [SMBv1 protocol connectivity (known issue)] Fixed: An issue where you might not be able to connect to shared files and folders if you"re using the Server Message Block (SMB) v1 protocol on NetBIOS over TCP/IP NetBIOS (NetBT). This can happen after installing update KB5065429.
- [Autopilot Enrollment Status Page (ESP) (known issue)] Fixed: An issue when using Windows Autopilot to deploy Windows 10, version 22H2 to devices with the Enrollment Status Page (ESP) configured might find that the ESP doesn"t load during the Out-of-Box Experience (OOBE).
You can download KB5066198 by heading to Settings > Update and Security > Windows Update and checking for available updates. Alternatively, get the update from the Microsoft Update Catalog using this link.
KB5066198 appears to be the final non-security update for Windows 10, which will be out of mainstream support by October 14, 2025. After that day, Microsoft will only release extended security updates for users enrolled in the corresponding program. Regular users can get twelve months of security-only updates essentially for free. At the same time, commercial customers are required to pay for each device, with Microsoft offering additional patches for up to three years. Additionally, there are third-party security options, which can give you a whopping five years of security updates with projects like 0patch.