"Error enabling Windows feature NetFx3" appears during the installation of SQL Server 2012 in Microsoft Dynamics CRM 2015

Error Details:

§ Error installing Microsoft. NET Framework 3.5

Error when enabling Windows feature NetFx3, error code:-2146498298. Try to enable Windows features NetFx3 from Windows Management Tools, and then rerun Setup. For more information about how to enable Windows features, see http://go.microsoft.com/fwlink/?linkid=227143

Error code: 0X85940001

Visit http://go.microsoft.com/fwlink? linkid=20476&prodname=microsoft+sql+server&evtsrc=setup.rll&evtid=50000&prodver=11.0.3000.0 &evttype=0x681d636f%401428%401&evttype=0x681d636f%401428%401 to get help with troubleshooting.

NetFx3 refers to the. NET Framework 3.5,sql Server Database the operation of the system depends on the. NET Framework 3.5, but Windows Server2012 does not have the. NET Framework 3.5 installed by default, so you can install SQL successfully Server2012 must first install the. NET Framework 3.5 on the operating system. The steps to install. NET 3.5 on Windows Server 2012 are as follows:

First, open Server Manager and select Add roles and features.

Click "Next"

For example, to confirm that all the. Net Framework 3.5 features are checked, you can click "Next".

Important: To select Specify alternate source path.

Path is specified as the path to the Windows Server 2012 installation disc.

OK, add ok, everything is quiet.

Alternatively, you can use PowerShell to install the command, which is slightly more complex.

install-windowsfeature Net-framework-core–source I : \sources\sxs

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"Error enabling Windows feature NetFx3" appears during the installation of SQL Server 2012 in Microsoft Dynamics CRM 2015