This didn't work for me - crashed after a few minutes again. (Also tried gjm777's solution and several others, to no avail.) If it means anything, my crashes seem to be location-dependent. For example, I never crash indoors or inside a city, and also in certain parts of the outdoor map like around Markarth and Winterhold, but almost always crash in Riverwood and around Riften. (Most other outdoor areas are unpredictable.) Have had this issue since like hour 2, and there doesn't seem to be any rhyme or reason other than location.