Cannot Install Dot Net framework 4.0 or above version in Window 2008 server R2

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  Now the Version of .net framework in the Server PC is 3.5.1 but cannot support some new software , like SQL server, so I need to update the .net framework version to 4.5 or 4.7. 

  but I got a failure in auto window updates and manual installation by downloading the latest version from MS website. 

  for manual installation, there is no any responses after I double clicks it or run it as admin. In service manager>features, i still cannot see the the choices for version 4.5/4.7 installation. 

  I have no idea about how to update this version so that I can run SQL server. 

  Please Help 

  Thursday, June 7, 2018 10:14 AM