I checked installed extensions, there were none. When it finished installing, it opened all by itself.
On completion, I double-clicked to run and ticked all the options to Create desktop icons, register menu options in Explorer, register known file extensions. I then went to Download Visual Studio Code - Mac, Linux, Windows and grabbed the 64 bit Windows “user installer” version. When done, I opened a new CMD session, and the python -version command returned 3.8.6. I ticked all the options to install for everyone and to add Python to the path. When done, I double-clicked it, dismissed the pop-up from Norton/Symantec and OK’d the installer to continue. I went to Python Release Python 3.8.6 | and downloaded the 'Windows Exe Installer 64 bit version. I get a different problem to you I’m afraid, but this is what I did. So, I booted into Windows 10 and attempted an install of PlatformIO from scratch. It was never used for anything thereafter as I do all my work and business stuff on Linux. Ok, in a moment of madness, I remembered that my laptop had been “upgraded” from a perfectly workable Windows 7 Professional, to a version of Windows 10 way back when the upgrade was free.
