How to solve the error code 0x800f081f: .NET Framework installation failed in Windows 10

There are several ways to solve the error code 0x800f081f when installing .NET Framework in Windows 10:

1. Use the DISM tool: Open Command Prompt as an administrator and type the following command: DISM /Online /Cleanup-Image /RestoreHealth. This will scan and repair any corrupted system files that may be causing the error.
2. Use the System File Checker (SFC) tool: Open Command Prompt as an administrator and type the following command: sfc /scannow. This will scan and repair any corrupted system files that may be causing the error.
3. Install .NET Framework manually: Download the .NET Framework installation package from the Microsoft website and install it manually.
4. Disable antivirus software: Sometimes, antivirus software can interfere with the installation of .NET Framework. Try disabling your antivirus software temporarily and then try installing .NET Framework again.
5. Perform a clean boot: A clean boot can help identify any software conflicts that may be causing the error. To perform a clean boot, follow these steps:
   • Press Windows key + R to open the Run dialog box.
   • Type msconfig and press Enter.
   • In the System Configuration window, click on the Services tab.
   • Check 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 on OK in the System Configuration window.
   • Restart your computer and try installing .NET Framework again.