Connect your iPhone to your computer with a USB cable
Unlock your iPhone and tap Trust if prompted
On Windows, open Photos or File Explorer
On Mac, open Photos or Image Capture
Select the photos you want to transfer
Copy or import the photos to your computer
Choose a folder or album to save them
Wait for the transfer to finish
Safely eject your iPhone from the computer
Use iCloud Photos if you want wireless transfer
Turn on iCloud Photos on your iPhone
Sign in to the same Apple ID on your computer
Download the photos from iCloud on your computer