Web Platform Installer
Cannot install PHP Manager for IIS in IIS 10
Re: Cannot install PHP Manager for IIS in IIS 10
Jan 19, 2018 02:15 AM|Yuk Ding|LINK
Please post the log in C:\Users\v-yukdin\AppData\Local\Microsoft\Web Platform Installer\logs\webpi.
First of all, please ensure the .net 3.5 has been installed. It seems that the PHP manager depend on the .net framework 3.5.
Secondly, please ensure PHP and IIS has been installed especially the CGI feature.
Thirdly, you could try to disable the firewall and anti-virus.
Considering you were using IIS 10 version, it could pop up the error" require IIS7 and above version". So you could try to modify the drowdMayjorVersion in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\InetStp from 10 to 8.