Fix VPN issue after installing KB5037771 2024-05 Cumulative Update for Windows 11​


The KB5037771 Cumulative Update for Windows 11, released in May 2024, has caused several issues for users. Among these, VPN connectivity problems have been particularly frustrating. In this blog post, I’ll guide you through the steps to address these issues and get your VPN working smoothly again.

 Common Issues Caused by KB5037771


1. Unable to Launch VPN:

– Many users have reported that they are unable to launch their VPN clients after installing the update.
– Even if the VPN client opens, some encounter difficulties connecting to their VPN servers.


2. Outlook and Teams Connectivity Problems:

– Users have faced issues connecting Microsoft Outlook to Office 365 (O365) services.
– Similarly, the Teams app may fail to connect properly.


3. Profile Picture Error (Error Code 0x80070520):

– Changing profile pictures for local accounts results in an error message with the code **0x80070520**.
– Microsoft is aware of this issue and is actively working on a resolution.


4. Stuck Update Process:

– Some users experience the May 2024 Update process getting stuck at 70% or 0% during installation.


5. Start Menu and Search Problems:

– The Start menu and Windows Search functionality may become unresponsive after applying the update.


6. App-Related Issues:

– KB5037771 has been linked to various app-related problems.
– Reinstalling Nvidia drivers seems to resolve some of these issues.


As of now, Microsoft has not officially provided specific workarounds for the VPN issues caused by KB5037771. However, you can try the following steps to mitigate the problems:

1. Run System File Checker (SFC) and Deployment Imaging Servicing and Management (DISM) Commands:
– Open a Command Prompt with administrative privileges.
– Execute the following commands one by one:
sfc /scannow
– These commands will check and repair system files and components.

2. Create a Batch File to Modify Registry Settings:
– Create a new text file using Notepad or any other text editor.
– Copy and paste the following lines into the file:
@echo off
reg add “HKEY_USERS\.DEFAULT\Control Panel\International” /v “Locale” /t REG_SZ /d “00000409” /f
– Save the file with a `.bat` extension (e.g., `FixVPN.bat`).
– Run the batch file with administrative privileges to add the specified registry key.

3. Restart Your Computer:
– After making the registry changes, restart your computer to apply the modifications.

## Conclusion

While Microsoft works on a permanent solution, these steps should help you address the VPN issues caused by KB5037771. Remember to keep your system updated and stay informed about any official patches or workarounds. If you encounter further problems, consider reaching out to Microsoft support.

I hope this guide helps you resolve the VPN issue! If you have any questions or need further assistance, feel free to ask. 😊👍

2 thoughts on “Fix VPN issue after installing KB5037771 2024-05 Cumulative Update for Windows 11”

  1. I used the registry fix and it worked for me. Before I made the change to the locale property, I was seeing faulting module events for logonui.exe and also for a vpn .dll file.

    Thanks a lot!

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