I have just installed Ubuntu 14.04 and I created 2 partitions. First has 50 GB and the other has 250 GB. Everything works in the system drive (create folder, cut/copy) but I am unable to make any changes the the other drive. It opens normally but I am unable to create folder, cut/copy/paste or make any changes.I checked the permissions under 'properties' and it says I am not the owner and all options are greyed out. However when I check system information it says that I am the Administrator. I am attaching two pics for your reference. Thanks in advance