Can"t create a new save file.

have you checked hard drive space?

and permissions on the directories (I don't have a Windows box to check where it is, but finding a directory named "Klei" shouldn't be hard:))

 

I've still got plenty of disk space left, and ive already found where the save files are. idk how to change that, or anything, really.

Since earlier, i tried deleting my save files to see if that would effect anything, i decided to try and delete the save location itself, and somehow, this fixed my issue. I'm not sure how, but i wont question it. Thanks for the advice tho, it was much more than i ever got on steam!