If the above solutions didn’t fix the problem, still windows 10 cant open photos then use a different third-party application such as Paint 3D, IrfanView, Snip & Sketch, Cool File Viewer, Photoshop, Inkscape, etc.
This will scan for corrupted, missing system files if found any, the SFC utility automatically restores them with the correct one.Next type command sfc /scannow and press enter key.It will take some time, Let the scanning process complete 100%.Programs like File Magic (Download) can open many different types of files. Finally, select Windows Photo Viewer from the list and from there, everything should work as expected. Type command Dism /Online /Cleanup-Image /restorehealth and press enter key to scan and correct any causes of the Windows 10 won’t open JPG files issue. When all else fails, a universal file viewer is the best way to open a JPG file. Just open the Settings app, then select System > Default apps > Photo Viewer > Photos.From the start menu, search for cmd, right-click on command prompt, select Run as administrator,.