I can not start Invest

Hi,

I dont found the variable name PYTHONPATH in my system

I tried to create a new user. But the same error occurs (v3.8.2 is working but failed with v3.8.4 and 3.8.5)

I dont have any antivirus program. I use the windows security default by windows 10.

After create QT_API variable, I have restarted windows and click to a Invest shortcut. The problems still there. I use cmd just for capture the screen.

Thank you for your help.
Ngô Đăng T