here is what happened: 1. I was using Windows 8 installed via Boot Camp on Macbook Air when the laptop shuts down because the battery is complete dry ... 2. Now when I choose to enter bootcamp windows during startup, the Win8 logo will freeze like forever without any indication of moving forward, not even displaying the progress indicator of looping dots at all. (nevertheless, the Mac OS startup is intact, thank goodness...) May I ask how to solve this problem? Should I reinstall Windows8? Thanks!