Uninstall old python version(Python 3.9.7)

I uninstalled Python 3.9.7 but I can't delete completely. And I received a notification "no Python 3.9 was detected". Of course, it won't be an issue if it defaulted my python version on my computer and it makes me can't use some libraries I installed before like numpy, matplotlib and n

Uninstall old python version(Python 3.9.7)

I had uninstalled Python 3.9.7 before but it wasn't uninstalled completely. I found it still in my computer and when I click "uninstall", it sent me a board "No Python 3.9 installation was detected". Of course, it won't be an issue if it defaulted my main Python version on my computer