A couple of days ago LR froze while previewing photos to be imported. Had to shut down. Since then when launching LR it won't open. The little wheel just keeps spinning round and round. Can't do ANYTHING. All I can do is close the program. I have Windows 10. Have been using LR on it for several months with no major issues.
And why is there no phone support?
Could you please go to Control Panel, and repair Microsoft Visual C++ 2012, 2013 and 2015.
Restart the computer and then try to open Photoshop and please let me know if it works.
I completed the steps you asked and it is still not working. No change.