Why the command prompt shows the file path of the configuration file php.ini at C:\WINDOWS when there doesn't exist any php.ini file?

I'm using Windows 10 Home Single Language 64-bit Operating System on my machine.

I've installed the latest copy of XAMPP server on my machine which ships with PHP 7.2.7

I tried to execute the following command at command prompt :

C:\>php --ini

I got following output :

Configuration File (php.ini) Path: C:\WINDOWS
Loaded Configuration File:         C:\xampp\php\php.ini
Scan for additional .ini files in: (none)
Additional .ini files parsed:      (none)

I understood everything except the first line in the output.

I checked the folder C:\WINDOWS on my machine by setting the Folder Options->View->Show hidden files, folders, and drives to ON

But I didn't see php.ini there.

Then, why in the output at command prompt it's showing that php.ini file is located at C:\WINDOWS? I also observed this in the output of phpinfo() function in my browser.

Please explain me why the Configuration File Path in the first line of output is pointing to C:\WINDOWS?