Fixing Error Code 0x800f081f: Resolving Source File Issues in Windows Server 2016

There are several methods to resolve the error code 0x800f081f in Windows Server 2016:

1. Utilise the DISM tool: Launch Command Prompt with administrative privileges and execute the following command: DISM /Online /Cleanup-Image /RestoreHealth. This process will examine and fix any damaged system files.
2. Run the Windows Update Troubleshooter: Navigate to Settings > Update & Security > Troubleshoot > Windows Update and initiate the troubleshooter.
3. Manually install the missing files: Should the error specify a missing file, obtain it from the Microsoft website and proceed with a manual installation.
4. Verify Group Policy settings: Ensure Group Policy settings do not impede update installations. Access Local Group Policy Editor > Computer Configuration > Administrative Templates > System > Specify settings for optional component installation and component repair and confirm it is set to Enabled.
5. Check the Windows Update service: Confirm that the Windows Update service is active. Open Services and verify that the Windows Update service is configured to Automatic and is operational.
6. Execute a system restore: If the previous methods fail, perform a system restore to a previous state where the error was absent.