Troubleshooting Error Code 0x800f081f During .NET Framework Setup on Windows 10

Here are a few methods to address the error code 0x800f081f when installing .NET Framework on Windows 10:

1. Utilise the DISM tool: Open Command Prompt as an administrator and input the following command: DISM /Online /Cleanup-Image /RestoreHealth. This scans and repairs any damaged system files causing the error.
2. Employ the System File Checker (SFC) tool: Open Command Prompt as an administrator and type the following command: sfc /scannow. This will check and fix any corrupted system files contributing to the error.
3. Manually install .NET Framework: Download the .NET Framework installation package from the Microsoft website and proceed with a manual installation.
4. Temporarily disable antivirus software: At times, antivirus software might interfere with the installation of .NET Framework. Disable your antivirus software temporarily and attempt the installation again.
5. Execute a clean boot: A clean boot can help pinpoint any software conflicts causing the error. To perform a clean boot, follow these steps:
   • Press Windows key + R to open the Run dialogue box.
   • Type msconfig and press Enter.
   • In the System Configuration window, click on the Services tab.
   • Tick the box next to Hide all Microsoft services.
   • Click on Disable all.
   • Click on the Startup tab.
   • Click on Open Task Manager.
   • Disable all startup items.
   • Close Task Manager and click OK in the System Configuration window.
   • Restart your computer and attempt installing .NET Framework again.