Microsoft has temporarily pulled the KB5079391 Windows 11 preview update after users reported widespread installation failures marked by error code 0x80073712. The update, which introduced 29 feature improvements, was intended for Windows 11 24H2 and 25H2 systems — but has now been paused to prevent further disruption.
What Was in KB5079391?
- Smart App Control enhancements
- Display improvements
- Windows Hello Fingerprint reliability fixes
- Windows Recovery Environment (Windows RE) stability for x64 apps on ARM64 devices
What Went Wrong?
Affected users saw this error:
“Some update files are missing or have problems. We’ll try to download the update again later. Error code: (0x80073712).”
Microsoft responded by halting the rollout and limiting availability via Windows Update. No timeline has been shared for a fix, but it’s likely to arrive before the next Patch Tuesday on April 14, 2026.
Recent Microsoft Update Issues
This rollback follows a string of March 2026 update complications:
- Emergency fix for Microsoft account sign-in failures across Teams, Edge, Copilot, and OneDrive
- Out-of-band patches for:
- Bluetooth visibility bugs
- RRAS (Routing and Remote Access Service) security flaws
- Samsung laptop issue: C:\ drive access blocked by a buggy Galaxy Connect app
What Users Should Do
- Avoid KB5079391: If offered, do not install until Microsoft confirms a fix.
- Check update history: If installation failed, remove remnants to avoid future conflicts.
- Watch for Patch Tuesday: April 14 may bring a stable version of these features.
- Samsung users: Follow Microsoft’s guidance to fix C:\ drive access issues.
Final Thought
Microsoft’s rollback of KB5079391 highlights the fragility of preview updates — especially as Windows 11 evolves across ARM64 and hybrid environments. While feature previews offer early access, they also carry risk. IT teams should treat non-security updates with caution, especially in production environments.
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