Trouble uninstalling/reinstalling python 3.9.1

[jnbutler1815]

I have completely uninstalled python 3.9.0 and 3.9.1 from my windows 10 computer. But when I try to reinstall 3.9.1 it gives me the dialog that says Modify, Repair, Uninstall, like it is still installed. I have run the python uninstaller, I have also removed all registry entries for python 3.9.0 and python 3.9.1 and windows 10 still thinks python 3.9.1 is still there. Any suggestions?

[Larz60+]

I would suggest using pyenv, see: https://python-forum.io/Thread-pyenv-Sim...Management
however for one time install, see https://python-forum.io/Thread-Python-3-...er-Windows
this is for python 3.8, but should be fine for 3.9

[jnbutler1815]

That did not work. Neither has any suggestions from my google searches. I cannot install python on my windows 10 machine now at all. Guess I'm screwed from learning python.

[jnbutler1815]

Finally got it working again. I had to uninstall everything, then install 3.8.3, then 3.8.5, then 3.8.7 then 3.9.0, then and only then could I install 3.9.1 successfully.
I am never messing with that again!

[Larz60+]

That is not the norm.
As far as I know, Python versions are stand alone, and not dependant on other versions.

[Skaperen]

is there a way to list every file in Windows 10? if i had that situation i'd want to make such a list on external storage (USB memory stick), do a binary destruct of each partition. reinstall Windows 10 fresh, list all the files again, compare the lists. the fresh install maybe can be done on a 2nd computer so i keep the python files. then i can see what failed to be removed by the uninstall. on Ubuntu, it would be the user config files that are left behind. but i don't know if Window 10 is like that. on Ubuntu, a more extreme action is purge which also removes user config files.

[snippsat]

For later default placement when install is in folder far away👀

C:\Users\(your name)\AppData\Local\Programs\Python\Python39

You can delete folder here,restart Pc.
If install still not work into Regedit.

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall 

Just scroll down to find Python 3.9 on right side and delete key.

I never use the default path,so i have python 3.8 and 3.9 on a easy path.

C:\python38 
C:\Python39

Can choose path when install as mention in my tutorial here.