i had the same exact problem yesterday, i installed the ck, and tried to do some mods whit it BUT! the folder of skyrim had some issues, i couldn't remove the "read only" thingy the strange thing, i was even able to "save" the esp and load it from the folder, so the file was actually SOMEWHERE i solved it by clicking on the (in italian is "file compatibilità") umm in the bar in the explorer: go into your tesvskyrim/data folder, look up in the explorer, there is a button that shows the files that the system have hide from you into another folder (shoul be between "new folder" and "share with") , copy the esp and paste it into the data folder i had a headache yesterday...this crap makes me feel sick ah btw sorry for my english