Resolving error code 0x800f0950: Installing roles and features in Windows Server 2019

Here are some steps you can follow to resolve error code 0x800f0950 when installing roles and features in Windows Server 2019:

1. Check for updates: Ensure your server is current with the latest updates and patches. Navigate to Settings > Update & Security > Windows Update and select Check for updates.
2. Use the DISM tool: Open Command Prompt as an administrator and execute the following command: DISM /Online /Cleanup-Image /RestoreHealth. This command will fix any corrupted system files causing the error.
3. Check the source files: Verify that the source files for the roles and features you want to install are available and accessible. If installing from a network share, ensure the share is accessible and you have the necessary permissions.
4. Disable antivirus software: Occasionally, antivirus software can disrupt the installation process. Temporarily disable your antivirus software and see if the installation completes successfully.
5. Use the Server Manager: Instead of using PowerShell or DISM to install roles and features, try using the Server Manager. Open Server Manager, select the server for the installation, and click Add roles and features. Follow the wizard to finish the installation.