Hi PaulMacready and thanks for reaching out. My name is Joseph. I'm an independent advisor. I'll be happy to help you out today.
I would suggest you refer to the below options and check if it helps to resolve the issue.
Option 1. Run SFC and DISM
1. Press the Windows key, type in CMD right-click and click on "Run as an administrator".
2. Copy-paste: sfc /scannow
3. Press Enter. Wait until it completes.
4. Copy-paste: DISM /Online /Cleanup-Image /RestoreHealth
5. Press enter. Wait until it completes.
https://support.microsoft.com/en-us/help/402652...
Option 2. Perform a clean boot in Windows
Summary
A “clean boot” starts Windows with a minimal set of drivers and startup programs so that you can determine whether a background program is interfering with your game or program. This is similar to starting Windows in Safe Mode but provides you more control over which services and programs run at startup to help you isolate the cause of a problem.
https://support.microsoft.com/en-ph/help/929135...
Option 3. Fix for Windows 10 Won't Open JPG or JPEG Files.
https://www.majorgeeks.com/content/page/windows...
https://appuals.com/fix-windows-photo-viewer-ca...
Option 4. Restore Windows Photo Viewer.
https://www.tenforums.com/tutorials/14312-resto...
Option 5. Do a repair install of Windows 10 with an in-place upgrade.
Summary
If your Windows 10 installation is demonstrating unusual behavior such as built-in apps not working or launching, you can perform a repair upgrade to fix the problem. A repair upgrade is a process of installing Windows 10 over the existing installation of Windows 10 on your hard disk, using Windows 10 installation media. Performing this can repair broken operating system files while preserving your personal files, settings, and installed applications.
You may try following these steps. Check this video tutorial for detailed instructions.
https://www.youtube.com/watch?v=l06XupVqH74
I hope this helps. Feel free to ask back any questions and let me know how it goes.
Thank you!
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