title: RStudio - Change R version doesn't works
body: <p>I have installed two version of R (Base-R and Microsoft R). Actually the Microsoft R version is Default and now I want to change to Base-R. In RStudio -> Options it is pretty simple to change the version. But when I select the Base-R version I get the following message:</p>
  
  <p>"You need to quit and re-open RStudio in order for this change to take effect"</p>
  
  <p>And then I press I "OK" and RStudio stops working. I try this multiple times. Why this doesn't works?</p>
  
  <p>Is the a command to change the version to Base-R? Because I don't want to deinstall Microsoft R.</p>
  
  <p>Thanks!</p>