How to fix error 0x800f081f on Windows 10

What is 0x800f081f

Windows 10 comes with installed .NET Framework 4.5 by default. The error 0x800f081f often appears owing to the lack of .NET framework v3.5 package. Since many programs developed for previous Windows operating systems require the .NET framework v3.5 installed along with 4.5. But once you try to install .NET framework v3.5 via Windows Update, you will see the error with code 0x800f081f. Here are some ways on how to fix this error

How to fix error 0x800f081f

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How to fix error 0x800f081f manually

Method 1

1. Insert your install media or mount the ISO for your Windows 10 version. Note the drive letter.
2. Click the Start button.
3. In the search box, type: cmd.
4. Right-click on cmd.exe and choose Run as Administrator. If done properly, User Account Control window will appear below.
5. Click Yes to run the Windows Command Prompt as Administrator.
6. Enter the command: dism /online /enable-feature /featurename:Netfx3 /Source:E:Sourcessxs (replace ‘E’ with the proper drive letter for the source of your installer)
7. Press Enter to perform task.
8. Reboot the computer.

Method 2

1. Insert your Windows 10 DVD, or double click its ISO image, or insert your bootable flash drive with Windows 10, depending on that you have.
2. Open ‘This PC’ in File Explorer and note the drive letter of the installation media you have inserted.
3. Click the Start button.
4. In the search box, type: cmd.
5. Right-click on cmd.exe and choose Run as Administrator. If done properly, User Account Control window will appear below.
6. Click Yes to run the Windows Command Prompt as Administrator.
7. Type this command: dsim /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources \sxs /LimitAccess (replace D: with your drive letter for Windows 10 installation media.)
8. Press Enter to perform task.
9. Reboot the computer.