title: Android Studio - Issues with emulator download
body: <p>I have run into a bit of a problem with my emulator for android studio. Everything was running fine yesterday until I was notified about updates and installed them. All but the emulator installed and now the emulator would not load. I am given the message:
   <code>Error while waiting for device: Timed out after 300seconds waiting for emulator to come online.</code> 
  I went into SDK tools and tried to reinstall but I have gotten this message.</p>
  
  <pre><code>To install:
  - Android Emulator (emulator)
  Preparing "Install Android Emulator (revision: 26.1.4)".
  Found existing prepared package.
  "Install Android Emulator (revision: 26.1.4)" ready.
  Finishing "Install Android Emulator (revision: 26.1.4)"
  Installing Android Emulator in             
  C:\Users\under\AppData\Local\Android\Sdk\emulator
  An error occurred during installation: Failed to move away or delete 
  existing target file: C:\Users\under\AppData\Local\Android\Sdk\emulator
  Move it away manually and try again..
  "Install Android Emulator (revision: 26.1.4)" complete.
  "Install Android Emulator (revision: 26.1.4)" failed.
  Failed packages:
  - Android Emulator (emulator)
  </code></pre>
  
  <p>I would like to manually move the file so the emulator can finish but I don't know how exactly. This probably won't solve the issue but I would like to check it off the list of possible areas. I have also tried other methods of solving the issue but I will gladly double back to make sure that isn't a issue. Thanks in advance.</p>