I have used iis web platform installer to install PHP 7.3(x86) and PHP 7.3(x64) on my windows 10.
Later I have deleted them, but I can still see them marked as installed in web platform installer.
Also when I open FastCGI settings I can't find any path accosiated with php.
Here it is explained why there is no uninstall feature in web platform installer at all, but
How can I "Remove" them or mark as "uninstalled" in order I was able to install them again normally using web platform installer?