I'm in the same boat here. I'm really annoyed.Its mainly affecting people without SSD when its advertised as HHD supported. I did a lot of tinkering around with the settings and stuff. The only thing I found was deleting.All the saved files including my characters. Verify the files. Then disable steam cloud save, and play in offline mode. I did this earlier after 3 days of wrecking my brain.And I don't have any save corruption even on auto saves. I tried the same thing without deleting my previous characters but it didn't work. I don't know has anything to do with the steam connecting to the cloud or not. Fingers crossed ten hours in and no problems yet.