title: Can't install .Net framework 4.0
body: <p>I downloaded .Net framework 4.0 "dotNetFx40_Full_x86_x64_SC.exe" on windows server 2008 R2, 64 bit OS and every time i run the exe file i got an error message "an error was encountered unspecified error"</p>
  
  <p>first it run and give me the below:
  <img src="https://i.stack.imgur.com/nZNRS.jpg" alt="enter image description here"></p>
  
  <p>then this error</p>
  
  <p><img src="https://i.stack.imgur.com/Eh5CJ.jpg" alt="enter image description here"></p>