Simply copy and paste the following to the notepad, and save it with the AHK file extension. You must have AutoHotkey installed to use this script. If you’ve upgraded to the latest version of the Photos app, moving the scroll wheel with your cursor positioned over the photo lets you zoom in/out. Microsoft isn’t likely to add the functionality back but you can get it back with a simple AutoHotkey script. Users are now complaining they liked it the way it was before. Microsoft gave users what they wanted with an update to the Photos app and replaced the scroll wheel’s next/previous photo function with the zoom function. It was likely due to Windows Photo Viewer, the default photo viewing app in Windows 7 which allowed users to zoom in/out with the scroll wheel. Users were not happy with this functionality. The Photos app in Windows 10 allowed users to go to the next or previous photo by scrolling the mouse wheel.
