Im new in elementary os so i dont know how its works. I have two discs , one for the os that doenst have any problem and the other disc is a hdd , and here is the problem because all the files are locked so i cant delete files or make new folder. can u say what can i do to change the properties of this hdd to make all the folders unlocked? The usbs works good to. I have tried making sudo chmod 777 folderthatiwantchange but this doesnt work.