Hi Henry,
I am sorry to hear that you are facing difficulty in opening files on your computer. There could be a few reasons why you're experiencing this issue, such as corrupted system files, third-party software conflicts, or some incorrect configurations. Here are some things that you can try to resolve the issue:
> Restart File Explorer by using Task Manager.
> Clear File Explorer history.
> Check for Windows 10 updates.
I hope this helps! Let me know if you need further assistance.
Best regards,
John D.
Independent Advisor