[Source] Error when enabling the Windows feature NetFx3 with error code: -2146498529

Title: Microsoft SQL Server 2012 Installer
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The following error occurs:

Error when enabling the Windows feature NetFx3 with error code: -2146498529. Try enabling Windows features NetFx3 from the Windows Management Tools and then re-run the installer. For more information on how to enable Windows features, see http://go.microsoft.com/fwlink/?linkid=227143

For help information, click: http://go.microsoft.com/fwlink?LinkID=20476&ProdName=Microsoft%20SQL%20Server&EvtSrc=setup.rll&EvtID=50000&ProdVer=11.0.2100.60&EvtType=0x681D636F%25401428%25401

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