On March 25, 2021, Microsoft released a new version of Windows 10 21H1 to the Beta channel with a single update related to printing graphic content in documents.
Shortly after the update, Insiders started reporting installation issues. When trying to install Windows 10 build 19043.906 (KB5000842), Windows Update started showing the error 0x800f091f.
In the official Windows blog, Microsoft posted an update to the original post, informing users of the problem.
The company said it will release something to fix the problem in an upcoming update. The new fix will be available soon as a cumulative update for Windows 10 21H1, which is under essay in the Windows Insider program.
Read more about update 19043.906 and the problem with installing it on the official Windows Insider blog.
Microsoft is nearing the final stage of development of the next major Windows 10 update version 21H1 is currently available on all internal channels for validation. As for regular traffic, the announcement will come in a few weeks.
Although it is an "important" update, you should not expect much from the first feature update of 2021. The most significant change in Windows 10 21H1 is multi-camera support for the Windows Hello.
The lack of new features in Windows 10 21H1 does not mean that Microsoft has given up on its flagship product. We will see many more changes with the release of Windows 10 in the second half of 2021.
Some of these changes are already available on the Dev Channel. For example, redesigned icons for File Explorer and Windows Settings, enhanced virtual desktops, on-screen keyboard enhancements, and more.
