Have Windows 7. I want to upgrade os for my ipad 2 and am finding it very difficult. I tried to upgrade itunes, but it would not install. Any suggestions? Is there any way just to upgrade os directly to ipad through wifi? Maybe I should not upgrade os. I want to be able to use cloud: install apps to the cloud, upload my photos to cloud, use apps from cloud. Might save a lot of space on ipad.