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© Rakhesh Sasidharan

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Microsoft .NET Framework 3.0 failed to be turned on. Status: 0x800f0906

While installing SQL Server 2012 at work on a Server 2012 R2 machine the install kept failing. Looking at the Setup logs I noticed that whenever I’d try an install something would try and install the .NET Framework 3.0 feature and fail. So I tried enabling the feature manually but it kept failing with the above error: Update NetFx3 of package Microsoft .NET Framework 3.0 failed to be turned on. Status: 0x800f0906.

On the GUI I kept getting errors that the source media didn’t have the required files, which was odd as I was correctly pointing to the right WIM file (and later I even expanded this file to get to the Sources\SxS folder) but event viewer had the above error. 

To get a better idea I tried install this feature via the command line. The .NET Framework 3.0 feature is called NET-Framework-Core (you can find this via a Get-WindowsFeature) so all I had to do was something along these lines:

I didn’t expect this to work but strangely it did! No errors at all. Thought I’d post this in case it helps anyone else. 

 

Microsoft .NET Framework 3.0 failed to be turned on. Status: 0x800f0906 by rakhesh is licensed under a Creative Commons Attribution 4.0 International License.