Problems updating my iPad using my computer
I don't have enough memory to update my iPad Air to 13.3.1, so I connected my iPad via USB and went into iTunes. iTunes is v 12.10.4.2 The iPad is 12.4.1
While I've tried several times re-booting both my Windows 7 PC and the iPad, after "Extracting Software", the PC gives a pop-up window "iTunes could not back up the ipad because the backup session failed. Please disconnect and reconnect the iPad and try again". As noted earlier, I've tried the disconnection and rebooting several times with the same result.
Any coaching how to get my iPad updated considering it only has 1.38G available and I'm running Windows 7 Professional, Version 6.1 (build 7601: service pack 1) and have plenty of disk?
Thank you!
iPad Air 2, iOS 12