Hi Dukessa34,
I'm Benedict, an Independent Advisor and a Microsoft user like you. I'm here to help and work with you on this matter.
How to backup iPhone to Windows 10 with iTunes
Step 1. Connect your iPhone to your Windows 10 PC and launch iTunes.
If you don't have iTunes, download it here: https://support.apple.com/downloads/itunes
Step 2. Click the Device button, go to Summary > Back Up Now.
Step 3. When the backup process has finished, go to iTunes > Preferences > Devices to check the backup.
Source: https://www.easeus.com/iphone-data-transfer/how...
Note: The links mentioned above are non-Microsoft websites. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
Please let me know if that helps.
Best Regards,
Benedict P.
Independent Advisor