Cybersecurity

Windows 11 Update Boosts Smart App Control & Display

Mar 28, 2026 1 min read by Ciro Simone Irmici
Windows 11 Update Boosts Smart App Control & Display

Microsoft's latest Windows 11 update, KB5079391, enhances Smart App Control and fixes display issues, boosting security and user experience.

In today's digital landscape, keeping your devices secure isn't just about antivirus software – it's about staying current with the latest operating system updates. Microsoft's recent preview update for Windows 11 delivers crucial enhancements to its Smart App Control feature, offering a more robust defense against new threats and making your daily computing experience smoother.

The Quick Take

  • **Update Name:** KB5079391
  • **Applicable To:** Windows 11 24H2 and 25H2 versions
  • **Key Improvements:** Smart App Control enhancements, Display fixes
  • **Total Changes:** 29 significant adjustments and improvements
  • **Release Type:** Preview cumulative update

What's Happening

Microsoft has rolled out the KB5079391 preview cumulative update for Windows 11, specifically targeting users on the 24H2 and 25H2 versions. This update is not just a routine patch; it bundles a total of 29 changes designed to refine the user experience and, more importantly, bolster system security.

The standout feature of this release is the enhancement to Windows 11's Smart App Control. This built-in security measure is designed to block malicious or untrusted applications from running on your PC, acting as a proactive shield against potentially harmful software. Alongside these security boosts, the update also brings a variety of display improvements, promising a more stable and visually consistent experience for users.

Why It Matters

For everyday users, this update is a significant step forward in simplifying cybersecurity. Smart App Control is Microsoft's answer to the ever-evolving threat landscape, especially concerning new malware and unwanted applications that might slip past traditional antivirus scans. By improving this feature, Microsoft is providing a more intelligent, automated layer of protection directly within your operating system, requiring less manual intervention from you.

In the context of cybersecurity, stronger Smart App Control means better peace of mind. It helps prevent accidental downloads of malicious software, protects your data from being compromised by unknown apps, and generally makes your Windows 11 environment safer. The display improvements, while not directly security-related, contribute to overall system stability, which indirectly reduces vectors for certain types of attacks that exploit system vulnerabilities or instability.

What You Can Do

  • **Check for Updates:** Navigate to Settings > Windows Update and click "Check for updates." If you're on a compatible version (24H2 or 25H2), you may see the preview update available.
  • **Understand Smart App Control:** Familiarize yourself with how Smart App Control works. It's designed to run in evaluation mode initially, learning your system before fully enforcing blocks. You can check its status in Windows Security settings.
  • **Consider Installing Preview Updates:** While it's a preview, these updates often contain important fixes and improvements. If you're comfortable with early releases, installing it can give you access to these benefits sooner. Otherwise, wait for the stable release.
  • **Maintain Update Hygiene:** Regularly checking for and installing Windows updates is one of the simplest yet most effective cybersecurity practices.
  • **Backup Your Data:** As with any significant system change or update, maintaining regular backups of your important data is always a wise precaution.

Common Questions

Q: What exactly is Smart App Control?

A: Smart App Control is a security feature in Windows 11 that uses an intelligent graph and AI to block new and unrecognized applications from running on your PC, protecting you from potentially malicious software.

Q: Should I install preview cumulative updates?

A: Preview updates allow you to get new features and fixes before the general public. While generally stable, they might sometimes introduce minor bugs. If stability is paramount, you might wait for the official, non-preview monthly update.

Q: How do I get this KB5079391 update?

A: You can get it by manually checking for updates in Windows Update settings (Settings > Windows Update) on Windows 11 versions 24H2 or 25H2. Ensure you have the option to receive optional or preview updates enabled if needed.

Sources

Based on content from BleepingComputer.

Key Takeaways

  • New Windows 11 preview update KB5079391 is available.
  • It brings significant improvements to Smart App Control.
  • The update also includes fixes for display issues.
  • It's for Windows 11 versions 24H2 and 25H2.
  • This update introduces 29 changes in total.

Ciro Simone Irmici
Author, Digital Entrepreneur & AI Automation Creator
Written and curated by Ciro Simone Irmici · About TechPulse Daily