Hello. My name is ***** ***** I will be assisting you today.
Plug the phone and thumb drive into a computer.
On the iphone it will prompt to Allow access to the computer, press Allow or Trust on the iphone.
Then go to start menu --> computer --> in here the iphone will show up as a E or F drive (maybe a different letter) from here go into the subfolders and copy the photos to the thumb drive which will also show up under computer as a E, F drive.