Error code 0x800F0906 : Unable to install .NET Framework 3.5 (includes .NET 2.0 and 3.0) on Windows 8 and Windows 8.1

Some users may encounter the issue of not being able to enable the .NET 3.5 feature in Windows 8 and Windows 8.1. The following error is displayed:

"Windows couldn't complete the requested changes. Windows couldn't connect to the internet to download necessary files. Make sure that you're connected to the internet, and click 'Retry' to try again. Error code: 0x800F0906"

Solution or Workaround

• You need to modify the Windows registry for this to work so make sure you make a backup of the same from here.
• Run the registry editor by pressing Windows + R and type regedit.
• Navigate to the following path:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

• Modify the value of UseWUserver to "0" Zero from the default value "1" One
• Now click ok and save the registry and exit. Reboot of the system is recommended.
• Now Follow the normal procedure to install the .NET framework you will not receive the error again.
• After installation revert the registry setting back to normal.

Thank you.