How can I prevent crashes shortly after starting the game?
Solution 1:
I had many freezes and lost several savegames due to that crashes. After some research someone said, that the autosave-function is bugged. After turning this function off I didn't have any freeze or crash since 20 hours of gameplay. Aditionally the loadingtimes are reduced, because the game itself saves on every warp/quicktravel/whatever. So, try to disable autosave and maybe clean up the old autosave-files. Don't forget to back up all your savegames ;)