Here are some reasons why KB5016616 fails to install on Windows 10;

Bugged Update Cache: Update cache stores the windows update files. When the cache is corrupted, it directly affects the update files, and an error appears during WU installation. In this case, you can clear the update cache to fix this issue.Corrupt System Files: You might experience this error when the system files that support the Windows updates are corrupt. They stop your system from installing the new updates. In this case, run SFC and DISM Scanning to detect the faulty files and repair them to proceed with the installation process.Disabled Update Services: Sometimes, the system optimization software disables the Windows update services, and as a result, your system doesn’t allow you to install any updates. In this situation, you can check the service’s dependencies and manually set them to automatic or restart them for a clean installation.Windows Update Components Corruptions: WU components prevent the update files from bugs and other malicious attacks, but once they corrupt, the bugs invade the update files and stop your system from installing the updates. To fix this issue, you should reset these components and check whether the problem resolves.

1. Run Windows Update Troubleshooter

Before applying any other method, run the Windows Update troubleshooter. It is a built-in feature that identifies the problem and fixes it. So, run it on your system and then try to install updates by following these steps;

2. Run SFC and DISM Scan on your PC

If the error still appears, run DISM and SFC scan. This method will help identify the possible issue in your system and repair it automatically. SFC scan takes time, so try to run DISM first and then run the SFC scan. So, follow these steps;

3. Reset the Windows Update Components

These WU components are essential for windows health. They prevent it from malicious attacks, unexpected errors, and glitches that can potentially crash system files. So if you are facing the issue, reset these windows update components by following the below steps and try to install the windows update again;

4. Download Windows Installation Media Creation Tool

When the above methods do not work, you can download Media Creation Tool in your system. It will upgrade the device and fast up the windows update installation process. So, follow these steps to download and run the Media creation tool on your PC;

5. Download Windows Update from Microsoft Catalog

If you still have issues installing updates, try downloading the update manually. All window updates are available on Microsoft Updates Catalog. You can search for your required update and download it to your system. But this method only installs the update. It won’t fix the issue due to which the error appears. So follow the below steps.

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