One thing that's always been lacking in Windows is a good interface for creating or editing your environment variables, especially when it comes to PATH:

 

2014-08-22_141706.png

 

Se what I mean?

 

Fortunately, there's a great free utility called Rapid Environment Editor that not only makes it easier to edit variables, it will also tell you where you have bad values. Check it out:

 

2014-08-22_142055.png

 

It highlighted my Path in red to tell me there was a problem and when I expand Path, it shows the problematic entries. Brilliant!

 

I can delete these and save my environment with a cleaner PATH variable.

 

Feel free to give REE a try - http://www.rapidee.com

 

Guy