I fixed this problem by moving my Skyrim files with Steammover, it has something todo with certain files getting jumbled in directories I moved it to from the F: drive to the D: drive and fixed it place your files onto a Main drive some games don't like being on External drives if steammover doesn't work just reinstall thz game on your harddrive so place it on your C / and you'll fix it worth a try i suppose ain't it :p