you do not have permission to access the requested resource
Good day. I have been trying for over a week now to update my IPhone 5 to the latest iOS 6.1.2. I have a windows 8 operating system with Itunes that I am using to try and update the software. Everytime I plug the phone in and connect to itunes, I get a pop-up saying that I have an update for the phone iOS 6.1.2, but when I click download and install, It says that I do not have permission to access the requested resource. Please help!!! Thank you.
iPhone 5, iOS 6.1.2, Update of OS