Fixing RemoteApp Access Issues Post-Microsoft Update
Access issues with your RemoteApp can arise following a Microsoft update, hindering work processes and causing frustration. This guide explains the root cause of these connectivity problems and offers a step-by-step solution to restore normal service.
You may see the following error when launching a remote app:
"An authentication error has occurred (Code: 0x80080005)
Understanding the Issue
The recent connectivity problem to your RemoteApp is attributed to a Microsoft update that inadvertently disrupts normal operations. Specifically, this is due to an update released in January 2026, identified as KB5074109. If your system applied this update, it might be experiencing access issues.
Steps to Resolve QBE Access Problems
To address this problem, a subsequent update (KB5077744) has been released. Applying this update will resolve the access issues caused by the previous one. Follow the steps below to identify your Windows version and apply the necessary update:
Step 1: Verify Your Windows Version
- Click on the “Windows” icon located on your taskbar.
- Type
winverinto the search bar and press Enter. - A window will pop up displaying your Windows version information.
Step 2: Download the Correct Update
Once you have your Windows version, you can download the appropriate update. There are different links depending on whether you're using Version 24H2 or Version 25H2. Identify your version and use the corresponding link:
Step 3: Install the Update
After the download completes:
- Double-click on the downloaded update file.
- Follow the prompts by clicking "Next", "OK", and then "Install".
- Administrator Access: Ensure you have administrator privileges to install these updates.
- System Reboot: A reboot is critical after installation to ensure the update is applied correctly.
- Troubleshooting Errors: If any step fails or the problem persists, verify that the update was applied successfully, and consider reaching out to technical support for further assistance.
By following these steps, your RemoteApp access issues caused by the Microsoft update should be resolved, allowing you to continue with your work seamlessly. Stay proactive by checking for further updates that might affect system access and applying patches as they are released.
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