Using Classic Outlook on Windows for personal email, calendar, and contact management
I'm going back to Office2019! I resisted going from Office 2007 until going to 2016 about ten years ago as it was. I still use the picture manager. It just doesn't show ISO, and is still pretty clunky, but unbeaten by a wide margin. ;)
Office Picture Manager was indeed useful until it was removed from the Office Suite (I believe it was in Office 2010). However there is a very robust free-ware picture manager with similar features but more editing features than Picture Manager: Fastone Image Viewer FastStone Image Viewer - Powerful and Intuitive Photo Viewer, Editor and Batch Converter
For opening .iso files you can use the freeware archive application "7zip" 7-Zip