Home > Development & Technical, General .NET Coding, Windows 10 > Windows 10 – Fix: Enable Feature .NET 3.5 Error 0x800F0906 and 0x800F081F

Windows 10 – Fix: Enable Feature .NET 3.5 Error 0x800F0906 and 0x800F081F

Within Windows 10 you can add the following Windows Feature – .NET Framework 3.5 (includes .NET 2.0 and 3.0) as shown below. Simply type Windows Features in the Windows Search bar on the taskbar and select Turn Windows Features on or off

WindowsFeatures

To enable this feature simply tick the checkbox and click OK.

When the wizard ran through it’s process I was faced with the following error:

WindowsFeaturesError

Windows couldn’t complete the requested changes.

Windows couldn’t connect to the Internet to download necessary files. Make sure you are connected to the Internet, and press “Retry” to try again.

Error code: 0x800F0906

Using the wizard I was unable to fix this error. Therefore to fix this issue, follow the steps listed below.

Fix:

  1. Open Windows Explorer (Windows + E)
  2. Mount the Windows 10 installation ISO you used to install your operating system.  You can do this by right clicking on it and selecting the option Mount. UPDATE: If you have the Windows 8 Installation Disc in your optical drive, then use this instead. However, make sure you change the commands mentioned later to match your optical drive.
  3. Use the RUN command in administrator elevated mode. You can do this by navigating to the location c:\windows\system32\cmd.exe and right-clicking on the cmd.exeapplication and selecting Run as administrator.
  4. Once the command windows has loaded, then type the following command (Note: Match the drive letter to your appropriate drive letter for the ISO or DVD):

dism /online /Enable-Feature /FeatureName:NetFX3 /All /Source D:\Sources\SxS /LimitAccess

Hit enter once you have completed the command.

Below is a screenshot of what this will look like when you hit enter.

Install .net 3.5

Install .net 3.5 - completed

Now your Windows Feature of .NET Framework 3.5 (includes .NET 2.0 and 3.0) is enabled.  To verify this, open the Window Features again to see the option is now enabled.

WindowsFeaturesFixed

Success! You have the Windows Feature enabled.

Hope this helps!

Greg Olsen
YellowDuckGuy

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  1. November 2, 2016 at 2:23 pm

    A great post, Greg. Here is a related Microsoft article https://support.microsoft.com/en-nz/kb/2734782.

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