Last week, Microsoft unveiled the KB5043076 update for Windows 11 during its monthly Patch Tuesday event. This mandatory security update is being rolled out to all users, aiming to enhance system security and performance.
For many, this update is a welcome enhancement, introducing a series of improvements and, in some instances, a noticeable performance boost. However, a segment of users has encountered challenges, including significant issues such as system crashes.
Better Performance for AMD CPUs
A key highlight of the update is the introduction of AMD’s Branch Prediction Optimizations, which were previously available in the optional KB5041587 update. This enhancement promises a performance increase of up to 11 percent for the latest AMD Ryzen processors in the 9000 series, with smaller gains for older models. For gamers, these improvements could make the update particularly appealing.
Known Problems with the Update
Despite its advantages, the September update has not been without its drawbacks. Some users have reported being unable to install the update, while others face system crashes post-installation. Additionally, frequent crashes of File Explorer when launched from the taskbar have been noted. Although Microsoft has addressed this issue, the fix is currently only accessible to Windows Insiders, leaving many users in limbo regarding a timeline for a broader rollout.
Other reported issues include:
- Phishing protection in Windows Security being disabled after a restart or shutdown.
- Execution problems with Windows.UI.Xaml.dll, affecting consent.exe and SystemSettings.exe.
- The “Run as administrator” option malfunctioning on Windows Enterprise systems.
- Slow response times when using the search function.
- Internet connectivity issues despite a stable router connection.
- Challenges with app loading.
- Inability to restart or shut down the device.
What You Can Do If You’re Affected
As KB5043076 is a mandatory security patch, it is automatically installed on all supported Windows 11 systems. However, if you encounter issues following the installation, you can manually remove the patch by following these steps:
- Navigate to Settings > Windows Update > Update History.
- Scroll to the bottom and select Uninstall updates.
- Find update KB5043076 and click Uninstall.
- Restart your system when prompted.
- Return to Settings > Windows Update and select Pause for 1 week to keep the patch uninstalled.
Microsoft has yet to comment on many of the issues associated with this update. Once fixes are made available, users can reactivate automatic updates. If you experience difficulties shutting down your PC, a forced shutdown followed by a system restore point may serve as a temporary solution.
