title: mvn -version 'mvn' is not recognised
body: <p>I've installed maven on windows 7 using the windows environment IHM with :</p>
  
  <blockquote>
    <p>M2_HOME : C:\dev\outils\maven</p>
  </blockquote>
  
  <p>and </p>
  
  <blockquote>
    <p>PATH : %JAVA_HOME\bin;%M2_HOME\bin;...</p>
  </blockquote>
  
  <p>java -version works fine </p>
  
  <blockquote>
    <p>java version "1.8.0_45" Java(TM) SE Runtime Environment (build
    1.8.0_45-b15) Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)</p>
  </blockquote>
  
  <p>but mvn -version is not working : I get the french equivalent to :</p>
  
  <blockquote>
    <p>'mvn' is not recognised as an external or internal command,
    operableprgram or batch file</p>
  </blockquote>
  
  <p>which is :</p>
  
  <blockquote>
    <p>'mvn' n'est pas reconnu en tant que commande interne ou externe, un
    programme exécutable ou un fichier de commandes.</p>
  </blockquote>
  
  <p>but mvn works :</p>
  
  <blockquote>
    <p>C:\Users\jerome>%M2_HOME%\bin\mvn --version</p>
  </blockquote>
  
  <p>result : </p>
  
  <blockquote>
    <p>Apache Maven 3.3.3 ...
    Maven home: C:\dev\outils\maven Java version: 1.8.0_45,
    vendor: Oracle Corporation Java home: C:\dev\outils\Java Default
    locale: fr_FR, platform encoding: Cp1252 OS name: "windows 7",
    version: "6.1", arch: "amd64", family: "dos"</p>
  </blockquote>
  
  <p>I've restarted the PC but it doesn't work better. Any idea?</p>