title: EVERYTHING is not recognized as an internal or external command, operable program or batch file IF ".EXE" SUFFIX IS MISSING
body: <p>this problem might not be the problem as u may expect and I'm using Windows 7. I've guaranteed that I have put the path to EVERY SINGLE EXECUTABLE FILE I need in the %PATH%.
  Yet I still can't run them nice and smooth by simply type there file name.</p>
  
  <p>For instance, I've already setup my python correctly, now I open my cmd in a totally irrelevant directory, says U:\\</p>
  
  <p><strong>U:\>python</strong></p>
  
  <p>'python' is not recognized as an internal or external command,
  operable program or batch file.</p>
  
  <p><strong>U:\>python.exe</strong></p>
  
  <p>Python 3.7.5 on win32
  Type "help", "copyright", "credits" or "license" for more information.</p>
  
  <p>And also, 'ipconfig' has the completely same issue as above:</p>
  
  <p><strong>U:\>ipconfig</strong></p>
  
  <p>'ipconfig' is not recognized as an internal or external command,
  operable program or batch file.</p>
  
  <p><strong>U:\>ipconfig.exe</strong></p>
  
  <p>Windows IP Configuration</p>
  
  <p>Ethernet adapter Local Area Connection: .......</p>
  
  <p>What!!! How come I MUST type the extension ".exe" to make this happen? Does anyone know how to fix this?</p>