How to fix error 0x800F081F on Windows 10

This problem occurs during the installation of Microsoft .NET Framework 3.5 on a PC with Windows 10. Errors that have a different appearance, but the same code, are similarly resolved by the methods below.

Why does error 0x800F081F occur?

• The main reason is the wrong source.
• The location indicated in the path does not contain the documents required for installation.
• The user trying to apply the changes does not have access to the location and files.
• The fileset is corrupted, incomplete, or invalid for the version of Windows you are running.
• Interruption during system updates. Turn off the PC during the update.
• Malicious software that damages update files.

How to recognize

• A message appeared and the active game / program window flew out.
• The PC does not start immediately, it reacts to the mouse, keyboard.
• PC freezes sometimes.
• After displaying error 0x800F081F, the computer turns off.

Correction methods

Configuring Group Policy

The error occurs because the component settings in Group Policy are disabled. You have to enable them:

• On the keyboard, press Win + R at the same time to bring up the “Run” window.
• Type “gpedit.msc” and click “Enter”.
• Find the Computer Configuration menu.
• Go to admin. templates.
• Click System.
• Double-click to specify the Advanced Component Installation / Repair settings.
• Turn on the options. Then click “OK”.
• Try to install the latest net framework. If it worked, then you will not see the error again, go to the next method.

Enable the .NET Framework 3.5 feature using DISM

Most likely net framework files are not included in your copy of Windows. Use DISM command to enable it.

Attention! To complete this method, you will have to supply a bootable media / ISO image for your version of Windows.

• Connect the Windows media to your PC.
• Mount the Windows ISO image.
• Press WIN + R on the keyboard. Then enter “cmd” into the command line.
• Place your cursor on the command line and select “Start as Admin”.
• Type “Dism / online / enable-feature / featurename: NetFx3 / All / Source: <DRIVE>: sources sxs / LimitAccess” and press Enter on your keyboard. (Remember to change the <DRIVE> data to the media / ISO name.)
• Re-install the net framework and see if the error goes away.

Reinstall Windows Update

• In the menu, find the item “Programs and Features”.
• Find the program you want in the title bar.
• Etc. click to select the delete / change command.
• Follow the instructions of the built-in installer to update.

We hope that the above methods helped you fix the problem. If this does not happen, then contact a specialist.