Resolving Error Code 0x800f0950: Troubleshooting Feature Installation on Windows Server 2019

Follow these key steps to troubleshoot and resolve error code 0x800f0950 during the installation of roles and features in Windows Server 2019:

1. Update the system: Ensure your server is fully updated. Navigate to Settings > Update & Security > Windows Update, and select Check for updates.
2. Utilise DISM: Launch Command Prompt with administrative rights and execute: DISM /Online /Cleanup-Image /RestoreHealth. This command helps fix any corrupt system files potentially causing the issue.
3. Verify source files: Confirm the availability and accessibility of the source files needed for the installation. If you're using a network share, ensure it's reachable and your permissions are correct.
4. Temporarily disable antivirus: Antivirus programs can occasionally disrupt the installation. Disable your antivirus briefly to see if the installation proceeds without issues.
5. Employ Server Manager: For installing roles and features, consider using Server Manager instead of PowerShell or DISM. Launch Server Manager, choose the server for the installation, and click Add roles and features. Follow the instructions in the wizard to complete the setup.