Answer to "Chrome OS crashed. Recovery Utility not working. Never reinstalls OS"The teardown shows that the SSD is soldered to the motherboard. It is not easily replaceable.
Answer to "Why isnt my windows booting up"Something you can do is press F8 while booting to bring you to the Windows recovery screen. That could possibly help. If that doesn't help, you can burn a Windows installation disk and recover your installation that way.