Problems installing the. NET Framework 3.5 in Win Server 2012

When you install SQL Server 2012 on Windows Server 2012, you are prompted

Error when enabling Windows feature NetFx3, error code:-2146498298. Try to enable Windows features NetFx 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

This NetFx3 is the. NET Framework 3.5, and when installed through Service Manager, the error still occurs.

Workaround:

1. Mount the installation media CD for Windows Server 2012, where the ISO mirrored media is mounted to the drive's e partition character

2. Running PowerShell as an administrator

3. Perform the installation NetFx3 function in PowerShell

Execute command:

Dism.exe/online/enable-feature/all/featurename:netfx3/source:e:\sources\sxs

At this point, the. NET Framework 3.5 is already installed and you can continue with other operations.

There are already relevant articles in the blog park. This article only records and shares personal issues.

Reference:

1, installation sql2012 is starting the operating system function "NETFX3"

2. Install the. NET 3.5 Framework in Windows Server 2012

3. Error resolution when Windows Server 2012 enables Windows feature NetFx3