title: Android Emulator won't starting up
body: <p>I just installed Intel HAXM and updated my Android SDK Tools to revision 24.1.2 successfully. Then I restarted my PC, and ran the emulator. Unfortunately, I my emulator won't starting up, always stuck. Waiting for ~1 hour, the emulator still getting stuck. Sometimes the screen was black, didn't show anything even the ANDROID logo while emulator was booting (full of black color). My screenshot:</p>
  
  <p><img src="https://i.stack.imgur.com/P9Xii.png" alt="adb getting stuck"></p>
  
  <p>The second problem is, as you can see in the figure, this is an abnormal behavior. There's no title bar, because it hides on the top of my desktop. So I can't move the emulator window to the center of my desktop.</p>
  
  <p>From the Console, it seems that Android Studio is waiting for the emulator to finish its start up:</p>
  
  <p><img src="https://i.stack.imgur.com/vUt4h.png" alt="waiting for adb"></p>
  
  <p>What have I tried:</p>
  
  <ul>
  <li>Restarted my PC.</li>
  <li>Followed <a href="https://stackoverflow.com/a/13419712/3922207">this answer</a>.</li>
  <li>Check and uncheck <em>Use host GPU</em> option in AVD.</li>
  <li>Re-build my emulator in AVD.</li>
  <li>Closed the emulator and ran it again.</li>
  <li>Changed CPU/ABI to ARM and Intel Atom x86 in AVD.</li>
  </ul>
  
  <p>Can you help me to solve these problems?</p>