While installing the Microsoft .NET Framework 3.5 on Windows 8, you may receive the error code 0x800f0906 like the following message:
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

This issue was usually caused by network, proxy, or firewall failures. To fix the error, try the following steps:
- Open "My computer" on the desktop.
- Insert the Windows 8 installation media, right-click on the Windows 8 client ISO.
- Click the "Start" button, and type "cmd" in the search box.
- run the following command:
- In the command prompt, type "Dism /online /enable-feature /featurename:NetFx3 /All /Source:<drive>:\sources\sxs /LimitAccess" and press Enter.
- Eject the Windows 8 client ISO, and install Windows Live component.
- Click the "Start" button, and click "All Programs", and then click "Windows Update".
- Restart your computer and install the Microsoft .NET Framework 3.5 again.
-- Download How To Fix Windows 8 Error Code 0x800F0906 as PDF --
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December 11th, 2012 on 6:27 am
for this to work you need to run the command prompt as administrator, if you run on your local account (even though it may be an admin account) it will not work.. just thought you might want to add that important little step. worked great though thanks!December 11th, 2012 on 8:45 am
Thank you for the add.December 24th, 2012 on 10:39 pm
HiWile useing the above methord it starts to enable and stops on 65.8 % and gives an error code:0x800f081fthe source files could not be found.December 24th, 2012 on 10:42 pm
Hi. Wile using the above method it starts to enable and stops on 65.8 % and gives an error code:0x800f081fthe source files could not be found.December 24th, 2012 on 10:44 pm
I am using 64bit OS i have seen that in the sxs folder all is x86 is this maybe the problem?February 10th, 2013 on 9:14 am
what is window 8 client ISO