title: Reset modelsim editor to the default one
body: <p>I want to reset my editor to the default one in <code>Modelsim</code> but I don't know how.</p>
  
  <p>When I double click on a project it opens in <code>Notepad</code>. I tried to change the value of the <code>editor</code> variable from the "<code>Edit Preferences</code>" tab but it didn't work.</p>
  
  <p>I also tried to change the windows settings to open it with <code>Modelsim.exe</code> and it worked for the first project only, but when I want to open another project it enters a loop where it keeps opening Modelsim again and again. What is the right way to do so?</p>