Backup iphone consume huge storage and still not finish
Dear Apple,
I have iphone11Pro 64Gb and current usage of the phone is 52Gb.
Last night I plugged it to my Windows laptop and using latest iTunes to backup it.
My hard disk had 230 Gb of free storage.
Today's morning, I found that the backup folder size is 230GB and iTunes still showing backup In progress.
So the backup is not completed due to no space available (my laptop's hard disk has only 4 Mb left) and I choose Cancel backup.
Could you help explain & advise what I should do to backup my iphone successfully ?
How could it possibly consume 230 Gb for backup my iPhone ?
Thank you.
iPhone 11 Pro