Windows 11 KB5041585 Issues: Slows Down PC/Breaks Vanguard

System problems and solutions caused by the Windows 11 KB5041585 update

Some users reported on the forum that the problems encountered after installing the Windows 11 KB5041585 update were mainly included slow computer running, stuttering, and the anti-cheating system Vanguard crash that did not work properly. Have you also encountered these problems? This article will provide some effective solutions.

Windows 11 KB5041585 Problem: Computer running slow/Vanguard crashes

The KB5041585 security update was released on August 13, 2024. While this update has brought a lot of improvements to your computer, it also brings some problems. Among them, the most common problem is that KB5041585 causes the computer to slow down or even unresponsive, and the "driver cannot load on this device" error in Vanguard's anti-cheating system.

According to user reports, after installing KB5041585, their computers became slow and even unresponsive. In addition, the anti-cheating system Vanguard also experienced an error of "driver cannot load on this device".

This article collects some ways to help you solve these problems. Please continue reading and try these methods.

Potential solutions to solve Windows 11 KB5041585 problems

Method 1: Uninstall KB5041585

Faced with system problems caused by Windows 11 KB5041585, you can choose to uninstall this update to restore the computer to the previous version. How to uninstall KB5041585 on Windows 11? Please follow these steps:

Step 1: Right-click the Start button on the taskbar and select Settings.

Step 2: Select Windows Update > Update History > Uninstall Update.

Step 3: In the update list that appears, locate KB5041585 and click the "Uninstall" button next to it.

Method 2: Disable IPv6

KB5041585 The problem of slowing down the computer after installation may be caused by the IPv6 CVE-2024-38063 patch. Based on practical experience, disabling IPv6 may effectively mitigate this problem. Here is how to disable IPv6:

Step 1: Right-click the Windows Logo button on the taskbar and select Windows PowerShell.

Step 2: If the UAC window appears, select Yes to continue.

Step 3: In the command line window, type the following command and press Enter to execute:

Set-ItemProperty -Path HKLM:\\SYSTEM\\CurrentControlSet\\Services\\Tcpip6\\Parameters -Name “DisabledComponents” -Value 0xFF -Type DWord

Step 4: To ensure that IPv6 is disabled, you can execute the following command:

Get-ItemProperty -Path HKLM:\\SYSTEM\\CurrentControlSet\\Services\\Tcpip6\\Parameters\\

After disabling IPv6, you can restart your computer and then check if the Windows 11 KB5041585 problem disappears.

Method 3: Disable security mitigation measures

As the error prompt indicates, the Vanguard crash problem is caused by the driver's incompatibility with Windows security mitigations called hardware forced stack protection. To resolve this issue, you can disable security mitigation by clicking the Disable button on the error pop-up.

However, doing so may reduce device security and may lead to system instability or data loss. It is strongly recommended that you develop the habit of system and data backup. You can use MiniTool ShadowMaker, a professional and green Windows backup tool, to back up your files/systems.

Recommended: Windows PC optimization and data recovery solutions

MiniTool System Booster: An excellent system optimization tool for optimizing computer performance. If your computer is still running slowly after trying the above method, you can use this tool to improve your computer performance. It can help speed up CPU, RAM, and hard disk resources, as well as find and fix system problems. You can try it for 15 days for free.

MiniTool Power Data Recovery: The best data recovery software for Windows 11/10/8.1/8. It supports recovery of various files, including documents, photos, videos, audio, emails, and more. It is good at handling various data loss situations, such as data loss after Windows updates, file loss after computer restarts, etc. If necessary, you can download and use it to recover 1 GB of files for free.

Summarize

This tutorial describes how to fix Windows 11 KB5041585 issues, including slow computer running and Vanguard crashes. In addition, some useful tools are recommended to help you protect your Windows system and files.

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