There are a few ways to back up your iPhone to Windows. You can use iCloudto back up your iPhone to your Windows PC, or you can use iTunes to back up your iPhone to your Windows PC.
To back up your iPhone to iCloud, you need to have a iCloudaccount and you need to be using a Windows PC running Windows 10 or earlier. Once you have these things set up, you can back up your iPhone to iCloudby …
