short answer is, you can't . it already comes with it. you can easily identify this problem by attempting to execute the windows management framework 4.0 installation. the error message you receive looks like this: make sure you read the system requirements closely! as keith hill's blog post points out, you want to make sure you have .net 4.5 installed. i believe error code 0x80096002 loosely translates to ... "you are a dummy, marcus."
notes, ramblings, contemplations, transmutations, and otherwise ... on management and directory miscellanea.