May sound odd, but I would suggest to just try to launch it again. We had many reports of random crashes at startup, which seems to be related to threaded loading. On Windows this is surely happening, and relaunching the client works. Not sure if in your case the problem is a different one. If you want to generate a more detailed log, you should launch the client with "--console --verbose" flags. Then you can post the log on pastebin, so we can review it.