Uninstall old python version(Python 3.9.7)

[Công Huy]

   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 network to
   solve my homework. I don't know how to fix it. Help me, please.



   Sent from [1]Mail for Windows



References

   Visible links
   1. https://go.microsoft.com/fwlink/?LinkId=550986