Hi,
I need some help here I just want to put something straight iam now running ios 7 beta 6 without dev accound and I want to install ios 7 GM but iam on windows
is it possible when I gave the GM installed to go back to IOS 6 (DFU) with the (newest) iTunes installed on my computer or do I need iTunes 11.1 

thanks for help
PS iphone 4!
I need some help here I just want to put something straight iam now running ios 7 beta 6 without dev accound and I want to install ios 7 GM but iam on windows

thanks for help
PS iphone 4!