make is a GNU command, so the only way you can get it on Windows is installing a Windows version like the one provided by GNUWin32. Anyway, there are several options for getting that:

1. Directly download from Make for Windows

2. Using Chocolatey. First, you need to install this package manager. Once installed, you simply need to install make (you may need to run it in an elevated/administrator command prompt):

   choco install make
   

3. Another recommended option is installing a Windows Subsystem for Linux (WSL or WSL 2), so you'll have a Linux distribution of your choice embedded in Windows 10, where you'll be able to install make, gcc, and all the tools you need to build C programs.

4. For older Windows versions (Microsoft Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, or Windows 7 with msvcrt.dll) you can use GnuWin32.

An outdated alternative was MinGW, but the project seems to be abandoned, so it's better to go for one of the previous choices.

Explanation

Inside directory C:\MinGW\bin there is an executable file mingw32-make.exe which is the program make you are trying to run. You can use the keyword mingw32-make and run the program make since you have added the needed directory to the system path, but it is not an easy to remember keyword.

Solution

Renaming the file from mingw32-make.exe to make.exe will allow you to run program make using the keyword make.

Renaming can be done:

1. Manually by right clicking and renaming the file.
2. By running the command copy c:\MinGW\bin\mingw32-make.exe c:\MinGW\bin\make.exe.

Result

Now if you type make on command prompt it should output something like:

make: *** No targets specified and no makefile found.  Stop.

Which means the program make ran.

Don't bother doing that. Just install MinGW, specifically MSYS.