Unity 5.3 stuck at startup

Hello
I have just updated Unity to 5.3 and the thing got stuck at the startup and nothing happens, even after reboot and everything, help.

  1. Restart Pc
  2. Turn your Internet ON
  3. Open Unity , black screen will appear just wait till it loads , the loading time depends upon your internet
  4. Once loaded successfully login and next time it will not take time to load :slight_smile: