Ahead of the October 17 launch, Microsoft is already starting to patch the Windows 10 Fall Creators Update. On October 13, the software giant released KB4043961 as a quality update, and while it doesn’t bring new features, this patch addresses a number of issues with version 1709.
KB4043961 bumps the version number of Windows 10 to build 16299.19 and fixes apps and localization problems, and there are a number of security fixes.
You can check everything that is new with the Windows 10’s Fall Creators Update in this comprehensive guide.
Microsoft has announced KB4043961 in the Windows Blog, and it’s referred as “Cumulative Update for Windows 10 Version 1709”. If you’re already running the Windows 10 Fall Creators Update on your PC, this update will only address these issues:
Windows 10 build 16299.19 (KB4043961) for PCs is available immediately. The new update will download and install automatically, but you can always force the update from Settings > Update & security > Windows Update and clicking the Check for updates button.
You can find more details about the most recent updates in the Windows 10 update history tracker guide.
Update October 14, 2017: This article has been updated to reflect that the update bumps the build number to 16299.19 and not to 16299.20 as Microsoft originally announced it.