Windows Update - Microsoft Pulls KB5079391 Over Errors

The Flaw

Microsoft recently pulled the KB5079391 update for Windows 11 due to critical installation issues. This optional cumulative update was intended to enhance features like Smart App Control and improve Windows Hello Fingerprint reliability. However, users began encountering the 0x80073712 error, which indicates that some update files are missing or problematic during installation. This has led to a frustrating experience for many users trying to update their systems.

The update started rolling out on March 30, 2026, but Microsoft quickly recognized the issue. The company announced that it would temporarily pause the rollout to investigate the problem further. This decision aims to prevent additional user impact while a solution is being formulated.

What's at Risk

The halt in the KB5079391 update affects users of Windows 11 24H2 and 25H2 systems. Those attempting to install the update are met with error messages, which can lead to confusion and frustration. The problematic update included various improvements, but the installation errors overshadowed these enhancements. Without a timely fix, users may miss out on important features and improvements that were intended to enhance their experience.

Moreover, this isn't the first issue Microsoft has faced recently. Just a week prior, another emergency update was released to address sign-in problems across multiple Microsoft applications. This pattern of frequent updates and subsequent issues raises questions about the stability of the Windows 11 update process.

Patch Status

As of now, Microsoft has not provided a specific timeline for when a fix for the KB5079391 update will be available. The company has indicated that it is actively working on resolving the installation issues. Users can expect that a resolution may be rolled out before the next scheduled Patch Tuesday on April 14, 2026. This upcoming patch could potentially include fixes for both the installation errors and other recent issues affecting Windows 11 users.

While waiting for the fix, users are encouraged to refrain from attempting to install the problematic update. Microsoft has stated that the update may not be offered through Windows Update during this investigation period, which is a precautionary measure to prevent further complications.

Immediate Actions

For users affected by this situation, the best course of action is to remain patient and monitor Microsoft's updates regarding the KB5079391 issue. Here are a few steps to consider:

• Avoid re-attempting the installation of the KB5079391 update until further notice.
• Check for updates regularly on the Microsoft support page for any announcements regarding a fix.
• Backup important data to ensure that you are prepared for any potential issues that may arise during this period.

In conclusion, while the pause in the KB5079391 rollout may be inconvenient, it is a necessary step to ensure a smoother and more reliable update experience for Windows 11 users.