As I said I am getting the date taken displayed below each thumbnail. It appears that the true file name is still exists but isn't being displayed. If I search in Windows Explorer I can find a photo that I want, by using the file name. If I enter the same name in PSE 11 I get the same photo displayed but the name isn't displayed beneath the thumbnail, only the date taken appears.
So the file name still appears to exist but PSE isn't seeing or displaying it even though it can find it. I'm guessing that it's a Windows 10 problem. Maybe the same problem accounts for the fact that no tags against each thumbnail even though they can be scrolled down in the tags list.
What do you think & how do I fix this?
It's not a Windows 10 problem.
1 - Use the 'detailed' view - shortcut Ctrl D (what you are correctly doing)
2 - View menu: be sure to tick all options including show file name
3 - Set the zoom for the thumbnail size big enough for the above information to display
4 - Keep the Information panel visible on the right, all the tags are shown in the 'image tag' section in the bottom.
Searching by file name:
It's an option in the find menu.
Did you try the new search view (magnifying glass on top right) if you have Elements 2018?