How to resolve error code 0x800f081f: .NET Framework installation failure on Windows 10

Here are various methods to resolve error code 0x800f081f when installing .NET Framework on Windows 10:

1. Utilize the DISM tool: Launch Command Prompt as an administrator and enter the following command: DISM /Online /Cleanup-Image /RestoreHealth. This process will check and repair any corrupted system files that might be causing the issue.
2. Employ the System File Checker (SFC) tool: Open Command Prompt as an administrator and type the following command: sfc /scannow. This will examine and fix any corrupted system files that could be triggering the error.
3. Manually install .NET Framework: Download the .NET Framework installation package from Microsoft's website and proceed with a manual installation.
4. Temporarily disable antivirus software: Antivirus programs can sometimes disrupt the installation of .NET Framework. Temporarily turn off your antivirus software and then attempt to install .NET Framework again.
5. Execute a clean boot: Performing a clean boot can help detect any software conflicts causing the error. To carry out a clean boot, follow these instructions:
   • 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.
   • Navigate to 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 to install .NET Framework again.