Lightroom Classic Won't Open

Help Please.  I can't get Lightroom Classic to open.  It worked fine for me last week.  Suddenly stopped launching.  I have tried uninstalling and reinstalling.  I have logged in and out of Creative Cloud.  I have rebooted the computer.  I have updated all my computer drivers, then gone through the cycle again.  It doesn't matter if I try to launch it from my desktop shortcut, the start menu, or within Creative Cloud. I get the little blue circle that spins for a few seconds...then nothing.  I have tried to go back and open from a backup catalogue.  Same thing happens.  I've searched through the postings and tried a couple other random fixes I found in here.  Nothing is working for me.  Getting desperate for a resolution.  

I am operating on Windows 11 Pro, and have the most updated Lightroom version through subscription service.