Last year my school district gave out an iPad Air to every student. In the terms and conditions document, it specifies that at some point in the future they will filter and include the App Store, so that we can download apps + games. However, this date is yet to come, and I would like to try out certain apps I've already purchased. I have tried to use iTunes but it says permission error, and the same with iFunBox. So basically, is there a way I can use my windows PC to force install a .ipa onto the iPad??