I tried those, they didn’t help. But I did manage to fix it another way, I’ll post it in can anyone else runs into this migraine inducing problem.
I did two things, one safe and one drastic, and unfortunately I did both then tested rather than testing after each one so I don’t know which one worked for sure.
First, when I uninstalled QT again, I deleted the directory in the program files folder before reinstalling.
I also removed all registry entries relating to QT as well before reinstalling.
Again, I don’t know for sure which of these made it work now, but one of them fixed it.
Thanks for your time and help.