Yep, screens shots are just a pic. And pics are static and don't move, so "frozen" is a rather good term. Can you explain better?
Does it work if you boot into Safe Mode?
https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode tells how
https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10 tells even more.
Nothing I do will correct the problem. Mouse can not click on the desktop'