Cannot get Psychopy 2020.2.5 to run on windows 10

If this template helps then use it. If not then just delete and start from scratch.

OS Win10
PsychoPy version 202.2.5
Standard Standalone
Psychopy has been running great up until yesterday and then it would no longer launch the App.
I uninstalled it and then installed the latest and it still will not run.
I urgently need to get up and running again so any help would be greatly appreciated.
I have read many forum articles but have not had any success.
Please provide guidance as how to debug this problem.

Thanks Phil

I fixed the problem by going to AppData\Roaming folder and deleting the Psychopy folder.