How to Fix Windows Update Error 0x800F081F on Windows 11 and Server 2022
If you’ve been battling the frustrating Windows Update error 0x800F081F recently, you’re not alone. Many users of Windows 11 and Windows Server 2022 have encountered this issue, which has prevented them from installing critical security updates. The good news is that a definitive solution is now available.
This guide will walk you through the cause of the problem and the precise steps you need to take to resolve it and get your system back on track.
The Root of the Problem: April 2024 Security Updates
The error began appearing for many users after attempting to install the April 2024 security updates. Specifically, the problem was linked to the following cumulative updates:
- KB5036893 for Windows 11 (versions 22H2 and 23H2)
- KB5036909 for Windows Server 2022
The update process would fail, presenting the 0x800F081F error message, which often indicates that the source files needed for the update are missing or corrupt. Investigations revealed the issue was tied to the English (United States) language pack. Systems without this specific language pack installed were unable to complete the update successfully.
While workarounds like an in-place upgrade were possible, they were time-consuming and inconvenient for most users and administrators.
The Official Fix: Emergency Out-of-Band Updates
To address this widespread issue, an emergency out-of-band (OOB) update has been released. This special update is designed specifically to fix the component corruption that causes the 0x800F081F error, allowing subsequent security patches to be installed correctly.
Here are the specific update packages you need:
- For Windows 11 (versions 22H2 & 23H2): KB5037959
- For Windows Server 2022: KB5037958
It is crucial to understand that these updates will not be delivered automatically through the standard Windows Update service. You must manually download and install them to resolve the error.
Step-by-Step Guide to Applying the Patch
Follow these steps carefully to fix the update error on your affected machine.
- Identify Your System: Determine whether you are running Windows 11 (22H2 or 23H2) or Windows Server 2022, and note your system architecture (e.g., x64 or ARM64).
- Visit the Microsoft Update Catalog: Open your web browser and navigate to the official Microsoft Update Catalog website. This is the only official source for these manual update files.
- Search for the Correct Update:
- If you are on Windows 11, search for KB5037959.
- If you are on Windows Server 2022, search for KB5037958.
- Download the Right File: From the search results, find the version that matches your operating system and architecture. Click the “Download” button next to the correct entry.
- Install the Update: Once the download is complete, run the
.msufile you downloaded. Follow the on-screen prompts to install the update. - Restart Your Computer: A system reboot is required to complete the installation process. After your computer restarts, the underlying issue should be resolved.
After completing these steps, you should be able to check for new updates via the standard Windows Update service and install them without encountering the 0x800F081F error.
Why Timely Updates Are a Security Imperative
Failing to install security updates leaves your system vulnerable to known exploits and cyber threats. This specific error blocked the installation of critical security patches, creating a significant risk for users and organizations.
Applying this out-of-band fix is not just about convenience; it’s a critical security action. By resolving the update mechanism, you ensure your system can receive ongoing protection against emerging threats. Always prioritize keeping your operating system and software fully patched to maintain a strong security posture.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-fixes-0x800f081f-errors-causing-windows-update-failures/
