如何在任何地方识别GNU make命令

I installed GNU-make. I added it to PATH.
However, it's recognized only in its path. I mean, when I write: C:\Program Files\GnuWin32\bin>make It works and gives me this response: make: *** No targets specified and no makefile found. Stop. But, when I write: C:>make It says, make isn't recognized as internal or external command. Howev