Everything you need to know about the October Patch Day for Windows 10

Microsoft October Patch Day for Windows 10

Exhaustive details on the October Patch Day for Windows 10 from Microsoft.

In October, Microsoft inaugurated Patch Day by releasing updates for all Windows editions. There are updates for older versions of Windows 10, in addition to patches for the most recent release. There is a dedicated thread for discussing the Windows 11 update patch.

As they fix bugs and enhance functionality, the upgrades are highly recommended for all users. Microsoft has provided the Windows 10 update history and knowledge base articles detailing all changes and possible variations for desktop, server, or HoloLens.

Alterations in the area of security

Since May 2021, Microsoft has packaged the newest Operating System Servicing Stack Update (SSU) with the latest Long-Term Servicing Channel Update (LCU). Currently, the patch day update from March 2022 is required, which means that no specific SSU is required to be installed beforehand. For those still using an earlier version of the LCU, the first step is to install the SSU updates that are available independently.

As a word of warning, Microsoft’s knowledge base articles might not be readily available right from the get-go with the new update. That’ll probably alter really rapidly, though. However, the updated versions are already available in the Microsoft Update Catalog. You can use the following checklist to verify that you have the most recent version installed. There, you may find the most up-to-date build numbers for each Windows release. To see what version of Windows you’re running, press Windows + R to bring up the Run menu, then type “WinVer” to bring up the version display.

  • Windows 10 (Version 21H2), KB5018410 (Build 19044.2130)
  • Operating System Update for Windows 10 (Version 21H1): KB5018410 (Build 19043.2130)
  • 20H2 Build KB5018410 Windows 10 (Build 19042.2130)
  • Build 1809 of Windows 10 (KB5018419) (Build 17763.3532)
  • KB5018411, Windows 10 Version 1607 (Build 14393.5427)
  • Operating System, Microsoft Windows 10 Version 1507, Update Rollup 4 KB5018425 (Build 10240.19507)

Patches and Upgrades A computer running Windows 10 (builds 21H2, 21H1, 20H2, or 2004)
The November 2021 Update (21H2) for Windows 10 features a new security update. We’re now on 19044.2130 as the new build number. Windows 10 users who haven’t yet upgraded to October 2020 or May 2021 will receive build number 19043.2130 or 19042.2130, respectively.


  • There has been a general Windows security update.
  • Changes previously provided in update KB5017380 are incorporated into this security upgrade ( released September 20, 2022 ).
  • Changelog for Article KB5018410 in the Knowledge Base

Windows 10 Versions 1809, 1606, and 1507 Receive Critical Security Updates

Updates to Windows 10’s security have been released for versions released in 2015, 2016, and 2018. There have been enhancements made to the overall quality of the updates.

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