title: Can't edit files in Vscode
body: <p>I've just started using Vscode and have a created a WebAPI project. On trying to open any of the default code files (Startup.cs and Program.cs) whatever I type starts to appear in the blue bar as shown below instead of where I have placed the cursor. I have no idea what's going on or what that blue bar is.</p>
  
  <p>I am able to add my own code files and edit these as I would expect.</p>
  
  <p>I'm running Vscode 1.29.1 on Win 10 on a Dell Latitude 12 7275. The vscode extension </p>
  
  <p><a href="https://i.stack.imgur.com/Cr46a.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Cr46a.png" alt="screenshot"></a></p>
  
  <p>Enabled extensions :</p>
  
  <p><a href="https://i.stack.imgur.com/8ktzq.png" rel="noreferrer"><img src="https://i.stack.imgur.com/8ktzq.png" alt="Enabled extensions"></a></p>