Microsoft has decided temporarily halt the KB5079391 update of Windows 11 after detecting problems in the installation process on certain equipmentThe company has acknowledged the flaw in its own official documentation and has chosen to halt the rollout before it affects a larger number of devices, including in the home and professional environment in Spain and the rest of Europe.
This update, which was offered as Optional preview unrelated to securityIt was intended to fine-tune system details before the next regular maintenance cycle. However, an error that appeared during installation has forced the removal of the Windows Update download, leaving many users wondering why they no longer see the package available in the optional updates section.
What is update KB5079391 and which versions does it affect?
KB5079391 is a previous update from March that was released on March 26. for computers with Windows 11 in its versions 24H2 and 25H2On compatible systems, the package carried the operating system to the builds 26100.8116 and 26200.8116respectively, forming part of the typical feature updates and fixes that Microsoft releases before the monthly cumulative patch.
As it was a preview update, its installation was neither mandatory nor security-critical, but it did represent a a good number of quality of life changes within the system. Among other things, it included improvements to the File Explorer, screen adjustments, and fixes to the behavior of various key functions, something especially relevant for those who test new features before they reach the general public.
The company updated the update history on March 27. to include a note clearly stating that the Deployment has been temporarily limitedThis note in the official documentation confirms that the pause is not a specific failure of some computers, but a deliberate measure taken by Redmond to avoid widespread problems.
In practice, this means that users in Spain or any other European country who no longer see KB5079391 in the optional downloads section of Windows Update are most likely affected by this global limitation and not by an isolated error on their PC.
Error 0x80073712: Damaged or incomplete files during installation
The pause stems from an installation error that some users have encountered while trying to apply the update. According to Microsoft's support page, messages may appear during the process indicating that update files are missing or some are having problemsThe installation process is interrupted and the system attempts to revert the changes, leaving the equipment in its previous state.
The fault is identified by the error code 0x80073712, an indicator that has been seen on other occasions and that points directly to damaged or incomplete components within the update package. In this context, the installer understands that it cannot continue with guarantees and stops the operation, which has raised alarms among both advanced users and in business environments that test patches beforehand.
In the official statement, Microsoft explains that, due to this problem, KB5079391 may no longer be offered via Windows Update to devices that attempt to download it. That is, if a device has tried to install the update and encountered the corresponding error, the system may stop showing the download as available while the company conducts its internal investigation.
Some users have seen a message informing them that an update will be downloaded later, accompanied by the aforementioned code 0x80073712. From the end user's perspective, especially in European homes and small businesses, the result is a failed update attempt that ends with no apparent changes to the system.
A setback amid promises of greater stability in Windows 11
The timing of this incident does not go unnoticed. In recent weeks, Microsoft has reiterated its commitment to to strengthen the stability and overall quality of Windows 11trying to reduce the feeling that each new update might bring unpleasant surprises. However, the case of KB5079391 has reignited a recurring debate among users: even optional updates, which in theory should be less risky, can cause problems before reaching the general public.
Specialized media outlets such as Windows Central have pointed out that the release of this preview, which was expected as a routine deploymentThe patch has ended up being very short-lived due to the detected error. What was meant to be a relatively minor patch has become yet another example of how a technical issue can force a last-minute reversal of course.
In this context, the decision to pause the deployment is presented as a containment measure for prevent the failure from spreading to more equipmentThis applies both to home users and organizations managing large fleets of Windows 11 devices. It's a prudent move, but one that adds pressure to the promise of a more predictable and less problematic upgrade experience.
Meanwhile, in parallel to this specific case, Microsoft documentation continues to highlight other open technical issues, such as the Expiration of certain Secure Boot certificates starting in June 2026This is an issue that the company recommends checking in advance, especially on professional and business devices in Europe, to avoid secure boot complications.
Changes and improvements that KB5079391 brought before the pause
The temporary removal of KB5079391 is particularly noteworthy because the update It wasn't just a minor patch.According to the official release notes, the package included a wide range of tweaks and fixes designed to polish the experience with Windows 11 in its most recent versions, something greatly appreciated by those who regularly install these types of previews.
Among the planned changes, the following stood out: Improvements to File Explorer, such as more reliable behavior when working with downloaded and unlocked files, as well as fixes affecting how some error messages were displayed when running system tools such as sfc / scannowThese are adjustments that, although subtle, contribute to making the system feel more stable.
Another important new feature was the improved support for displays with very high refresh ratesallowing certain monitors to report refresh rates exceeding 1000 Hz. Although this is a very specific scenario, primarily aimed at advanced hardware and sectors like competitive gaming, it demonstrates that Microsoft continues to refine support for demanding configurations in the European market as well.
The update also included fixes and adjustments for Windows Helloimproving the reliability of fingerprint recognition on some devices, as well as changes related to Safe Mode, system audio, Voice Access, and the behavior of group policies that control the Start menu and other aspects of the interface.
In the accessibility section, KB5079391 introduced Significant improvements for Windows NarratorWith more refined integration with features like Copilot, this is key for users who rely on these tools for work or daily life. Security features were also improved, such as smart app controldesigned to block potentially dangerous applications.
Overall, the package was presented as a collection of quality of life improvements While not adding a major headline feature, it did aim to make everyday use of Windows 11 more convenient and stable. All of this is now on hold until Microsoft resolves the installation issue.
What can Windows 11 users in Spain and Europe do now?
To date, Microsoft has not yet published a Official manual solution to force installation KB5079391 has not been updated, nor has a specific timeline been shared for resuming its rollout. The guidance provided in the documentation is limited to acknowledging the problem as a known issue and clarifying that the update will be available again once error 0x80073712 is fully resolved.
In practice, this leaves affected users in a situation of passive waitingIt is not recommended to attempt to apply the update through alternative methods, download unofficial packages, or force installations that could worsen the system's condition. The sensible approach, especially in work environments and production systems, is to remain on the current build and stay tuned for upcoming cumulative updates.
Most likely, once the problem is fixed, Microsoft will opt to republish KB5079391 with a revised identifier Alternatively, all these improvements could be integrated directly into one of the cumulative patches released on Patch Tuesday. This way, the quality-of-life fixes currently on hold would eventually reach users along with the mandatory security updates.
Meanwhile, those who go into Windows Update and only see other updates, such as minor packages aimed at fixing specific user account errors or small issues, shouldn't be alarmed. The absence of KB5079391 in the list of optional downloads is, in most cases, due to the temporary removal of the patch and not an individual problem with your PC.
In Europe, where many companies maintain more conservative upgrade policies, this pause may even reduce short-term risks. System administrators who had already scheduled deployments will have to adjust their timelines, but they will avoid having to deal with failed installations and potential mass rollbacks on their internal networks.
In this scenario, the situation is marked by a paradox that is quite common in the Windows ecosystem: An update designed to improve the experience and fix bugs ends up being halted by a failure in the installation process itself.Until Microsoft fixes the problem and resumes the rollout, Windows 11 users in Spain and the rest of Europe will have to continue using current builds, waiting for the promised improvements to arrive in a more stable and better-tested package.
