Microsoft pulls Windows 11 KB5079391 preview after it causes install error loop on 25H2 and 24H2
Windows Latest • • technology
Key Points:
- Microsoft has pulled the Windows 11 optional update KB5079391 due to installation issues causing some PCs to get stuck with error 0x80073712, indicating missing assembly files in the WinSxS folder.
- The update was briefly available on March 26, 2026, but was paused within hours as Microsoft investigates the root cause and temporarily limited its availability to prevent further impact.
- Microsoft rarely removes updates once released, suggesting the installation problem with KB5079391 was widespread and significant.
- The company is actively working to improve Windows 11 and its update process in 2026, including plans to allow users to pause updates for months, skip updates during setup, and experience faster overall performance.
- Despite these future improvements, users currently face frustrations with Windows updates, including recent issues like broken Microsoft account sign-in and failed update installations.
