So like everything that has to do with computers for me, nothing ever works like its supposed to, my damn itunes is getting the 1604 error when trying to restore my iPhone to the custom firmware. I'm using a PC and the only solution I've seen is erasing some files by going to library/iTunes/device support or something. Well no one ever explains how to get to those folders and I think it's for macs. So how do I delete these files on a PC? So that I can get rid of this damn 1604 error? Please help!!!