Recent Win11 Update: Search And A File Type Lost!

Hi! Just this morning, my Win11/64 laptop underwent a major update. Now, when I tried the command prompt, I kind of liked the change. However, the Explorer's search feature stopped working: when I press Enter, it doesn't start searching, and I see no button to start the search. Also, one of my file classes got lost. It was for .cfg files. Another file class created by the same program works, though. I tried again to fix the problem by using the program to rewrite the association, first regular then running it in Administrator mode, and the association is still not working. The program is called EditPad Lite.

BTW, since Win11 (or Win10), files in Explorer in list view are a little too far apart. How do I decrease this distance?

 

I was wrong about the search issue: it worked on a different folder. I still have the association issue, though.