Troubleshooting Error 0x800f081f: Failed .NET Framework Setup on Windows 8

To rectify the error code 0x800f081f during the .NET Framework setup in Windows 8, consider these steps:

1. Update Windows 8: Ensure your system has the latest Windows updates by navigating to Settings > Update & Security > Windows Update, and selecting Check for updates.
2. Utilize the .NET Framework Repair Tool: Obtain and operate the .NET Framework Repair Tool from Microsoft’s official site to resolve setup problems.
3. Manually install .NET Framework: Should the prior suggestions fail, attempt a manual installation of the .NET Framework. Secure the installer from Microsoft's site and execute it with administrator privileges.
4. Deactivate antivirus programs: Antivirus software may disrupt the setup process. Temporarily disable your antivirus and try installing the .NET Framework again.
5. Perform a clean boot: Conducting a clean boot might help detect and solve conflicts that hinder the .NET Framework installation. Refer to Microsoft's guidance to execute a clean boot.