Microsoft Windows 11 KB5041585 IPv6 patch slows down PCs, breaks Vanguard, fails to install

Microsoft Windows 11 KB5041585 is popping out to be a nightmare for some individuals, because the updates repeatedly fails to put in. Even when it does set up, it causes extreme efficiency issues for some customers. In some instances, it additionally causes Valorant’s anti-cheat function Vanguard to fail with the “A driver cannot load on this device” error.

KB5041585 is a vital launch as a result of it patches a crucial TCP/IP bug (CVE-2024-38063) that enables an attacker to get entry to your system if it makes use of IPv6. This bug mainly allow unauthorized customers to execute code in your PC, and it may be exploited by simply sending specialised IPv6 packets to focus on techniques.

Microsoft has urged everybody to instantly set up Microsoft Windows 11’s August 2024 Update or disable IPv6 entry as quickly as attainable, however there’s a catch. As first reported by Microsoft Windows Latest, a few of our readers flagged that KB5041585 doesn’t set up, as they see ineffective error messages after they examine for updatess and try and obtain/set up the patch.

Microsoft Windows 11 KB5041585 updates set up issues

Beyond complaints from our personal readers, we’ve noticed the identical downside on one in all our PCs. We have additionally noticed comparable experiences from customers in Feedback Hub:

“KB5041585 keeps failing every time I try to updates. I have tried clearing cache, stopping/starting updates service and manual download and install, but nothing seems to work,” one of many affected customers famous.

“For whatever reason, the updates somehow failed to install. I tried again and then it said that it would try again. I’m going to restart and check to see what’s up. It gave me error 0x8007045b. This never happened with all the other updatess I installed on my Microsoft Windows 11 laptop,” one other consumer famous.

The set up issues are actually fairly widespread with Microsoft Windows Updates and don’t look like particularly widespread with the August 2024 Update.

On one in all my PCs, I additionally noticed an “Install error – 0x800f0823” when making an attempt to put in “2024-08 Cumulative Update for Microsoft Windows 11 Version 23H2 for x64-based Systems (KB5041585)”. The “retry” button doesn’t assist.

If you’re unable to put in the updates using Microsoft Windows Update like me, I’ve obtained you lined. Just observe these steps, and also you’ll be capable of set up the patch:

1. Head to Microsoft Update Catalog.
2. Click “Download” next to the Microsoft Windows model put in in your PC. If you’re uncertain, open Settings > System > About, and match the model quantity.
   
3. Finally, click on on the .msu hyperlink to start downloading the updates in .msu format.
   
4. Once performed, double-click .msu file to put in the patch.

Performance issues after the August 2024 IPv6 CVE-2024-38063 patch

We’re seeing an increasing number of experiences that Microsoft Windows 11 KB5041585 is inflicting extreme efficiency issues, with some people observing that their highly effective gigs are unusable after the patch.

“KB5041585 and KB5042099 in yesterday’s updatess are now causing memory errors on a high powered workstation with 64GB of RAM, 10 GB of graphics memory and a 10GB system page file,” one of many affected customers shared their expertise after putting in Microsoft Windows 11 August 2024 Update.

“This problem started as soon as the updatess installed this morning. Any slightly heavy applications, such as Adobe Photoshop or Audition, or games like Diablo and World of Warcraft keep crashing, and this is the only change this PC has experienced since last month’s updatess. Dialog box says “XXX program is using too much memory and must shut down” although Task Manager says I’m solely using 18% and theres over 900GB free area on the drive. This has by no means been an issue till right this moment,” one other consumer defined.

Microsoft Windows Latest noticed comparable experiences in a Reddit thread the place a number of customers alleged that they don’t perceive “what in the world happened with this updates, but it’s completely screwed up” their gadgets. Our readers additionally flagged “weird performance problems” after putting in August 2024 Patch.

“Slow, laggy, extremely delayed response time, Minecraft realms won’t even show and no sound at all on the app,” one other pissed off Microsoft Windows 11 consumer added.

One consumer described their battle with the updates, noting that after August 2024 updates, their laptop computer didn’t “ updates and shutdown” as anticipated. When they tried to log in, the display went black, and even after efficiently logging in, nothing labored appropriately.

KB5041585 has additionally led to excessive CPU utilization, with some customers reporting that their CPU is continually at 100%, inflicting all the things to run slowly and resulting in frequent timeouts.

So, what are you able to do to repair efficiency issues brought on by the IPv6 CVE-2024-38063 patch? In our assessments, we noticed that eradicating the patch after which turning off IPv6 manually is the easiest way to deal with the issue:

1. First, let’s flip off IPv6, so your device is not going to be weak to assaults for those who select to uninstall the updates. To fully disable IPv6, run the next command in PowerShell (admin):

   Set-ItemProperty -Path HKLM:SYSTEMCurrentControlSetServicesTcpip6Parameters -Name "DisabledComponents" -Value 0xFF -Type DWord

2. To confirm IPv6 is disabled, run the next command in PowerShell:

   Get-ItemProperty -Path HKLM:SYSTEMCurrentControlSetServicesTcpip6Parameters

3. Reboot your system for modifications to take impact.
4. After turning off IPv6, we will now uninstall KB5041585.
   
5. To do that, open Settings > Microsoft Windows Update > Update History > Uninstall updatess, and choose Uninstall next to the patch. Then, reboot the system when mandatory.

Vanguard may not work after the updates

After putting in the Microsoft Windows 11 KB5041585 updates, some customers noticed that the anti-cheat system Vanguard may not work with an error “A driver cannot load on this device”.

For these unaware, Vanguard is an anti-cheat system by Riot Games, the developer of the well-known sport Valorant.

As proven within the above screenshot, you may see an error “A driver cannot load on this device”, which particularly mentions “Vanguard kernel-mode driver” by “Riot Games, Inc”, and explains that the motive force can not load as a result of it’s incompatible with a Microsoft Windows safety mitigation known as Hardware-enforced Stack Protection.

“You can disable this security mitigation by clicking the Disable button below and rebooting the device. However, doing so will downgrade the security of your device,” Microsoft famous within the error message.

It seems like Microsoft Windows 11’s August 2024 Update can be encouraging driver builders to updates their options to adjust to this safety customary. Disabling this function is an possibility, nevertheless it reduces the safety stage of your device.

Have you run into any of those issues with Microsoft Windows updatess? Let us know within the feedback beneath.