Since Windows 10 is in its ESU phase, there are no new features being added. Updates are strictly focused on: Windows 10 - release information - Microsoft Learn

First, . Run the winver command as described above. What does the pop-up window say? If it reports a different, standard build number (like 19045 or 22621 ), then the 23100 reference is likely a red herring—perhaps an internal identifier for a driver, a specific update component, or a different software component (like the aforementioned Microsoft Defender client). Your system is almost certainly fine.

(Points docked for lingering ads in the Start Menu, points gained for Sudo and Stability).

| Version | Marketing Name | Build Number | Release Date | | :--- | :--- | :--- | :--- | | 1507 | Original Release | 10240 | July 2015 | | 1511 | November Update | 10586 | November 2015 | | 1607 | Anniversary Update | 14393 | August 2016 | | 1703 | Creators Update | 15063 | April 2017 | | 1709 | Fall Creators Update | 16299 | October 2017 | | 1803 | April 2018 Update | 17134 | April 2018 | | 1809 | October 2018 Update | 17763 | October 2018 | | 1903 | May 2019 Update | 18362 | May 2019 | | 1909 | November 2019 Update | 18363 | November 2019 | | 2004 | May 2020 Update | 19041 | May 2020 | | 20H2 | October 2020 Update | 19042 | October 2020 | | 21H1 | May 2021 Update | 19043 | May 2021 | | 21H2 | November 2021 Update | 19044 | November 2021 | | | 2022 Update | 19045 | October 2022 |

It never shipped to Insiders or the general public. The number itself originates from Microsoft’s internal compilation of Windows 11’s Canary Channel, and it has been incorrectly reattributed to Windows 10 by third-party tools, sloppy reporting, and deliberate misinformation.

Version 1.0 | Last Updated: May 19, 2026