Error 2502/2503 also appeared when I installed msi files in windows10
I also solved the specific steps through the previous methods as follows (click to view) :
Win10 installation mSI prompt 2502, 2503 error code (successfully resolved)
However, when I installed Python today, I could not solve it according to the previous methods. I searched again by myself, and finally solved the following problems:
The reason is that the C:\Windows\Temp folder NTFS has the wrong permissions. It is OK to change its User permissions to full control.

I changed the full control permission of the TEMp myself

And then just reinstall it