The updated Windows Photos app has an AI erase tool that works very well in limited testing, but while Microsoft says both Win10 & 11 will get the newest version, I've yet to see it with the copy of Win10 on this PC or in my Win10 VMs. At the same time AI image generation and/or object removal do sometimes screw up, with results that can sometimes be described as wild. For both of those reasons I was curious about AI Photo Object Eraser as a potential alternative, but sadly, using the same test image I've used for other apps/tools like Windows Photos, it fails somewhat badly. Rather than matching the deleted area with the rest of the photo, it duplicated part of another area in the photo. That said, it *might* work if the photo has a less complicated scene if you don't have the new Windows Photos yet. Note that Drag and Drop doesn't work, the app opens full screen every time, and it doesn't see .jpeg files, only .jpg.
The app itself only takes up 120MB in the program's folder -- FWIW the AI-assisted apps I use for photo editing are huge, taking up more than a few GB each. 3 small files are also added to Users\ [UserName]\ AppData\ Roaming. I recorded over 200k new registry entries in my Win11 VM, but as best I can tell [could have missed something parsing the 68MB .reg file] AI Photo Object Eraser only adds an uninstall key.