shellexperiencehost not installed correctly

Running Maintenance from Windows Settings didn't make a difference either. I ran in command prompt as admin /sfc scannow which shows no errors and dism /online /cleanup-image /restorehealth which unfortunately doesn't seem to help either. The same left-click issue has been happening again recently (not sure if it was due to a Windows Update or not), but the fix I had found before no longer works as I don't have that setting on. which led to me doing more searching/googling for another day or two until I found out that apparently in Settings -> Accounts -> Sign-in options, there was a bug in which if you had 'Use my sign-in info to automatically finish setting up my device after an update or restart' on, it would cause this issue to occur. That fix only lasted for a day before the issue started popping up again. The way I had 'fixed' it (if you can even call it that) was after spending >1 week with several hours each day trying/searching for a fix, I did a clean install of Windows (losing all the software I had installed.

I can right-click everywhere though, and I can left-click anything on my desktop or anything I have pinned to my taskbar. The problem I am having is that I cannot left-click the start button after logging into my desktop. I've been having this issue intermittently over the last several months.

Shellexperiencehost not installed correctly