W4RR10R

I got a similar problem. My Skyrim was working perfectly till about 2 weeks ago. Loaded patches, then my shadows started freaking out, re-installed game from scratch, after then when ever i enter riverwood just past the trader house it ctd's reloaded about 10 times now, with and with-out mods, with and with-out patches nothing works. Keeps Crashing. Did manage to make my way to whiterun, but not through riverwood, had to take a long way round, circled back to riverwood after discovering white run only to crash just after passing the last farm back to riverwood. Any suggestions?