This Error Code 800F081F is commonly caused due to the .NET framework installation failure. These are following ways in which you can attempt to correct this error.
1.Perform a SFC scan so that you can fix potentially corrupted or missing files, most the cases this system file scan fix common issues with the file system.
2.To do a restore to healthy previous setup with command prompt to fix potentially corrupted or missing files
3.Using the windows update troubleshooter fix it tool, is also a good tool to automatically fix the most common issues.
4.By cleaning SDF (Software distribution folder) for a clean slate for Windows Update or renaming so machine itself creates a fresh one in the next update.
5.Resetting PC
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