How do I set Windows Environment variables permanently, I see that the Windows environment variables are reset when you close the command window. I want to set them permanently so that I don't have to repeat the task every time I use CLI.
Right click on Computer, Advanced system settings, select Advanced tab and click Environment variables.
Note: once you modify the environment variables, you will have to restart your applications, including CLI.
This can also be achieved from command prompt. The following example set a variable at user level:
SETX variable_name value
For machine level elevation is required:
SETX variable_name value /m
来源：https://stackoverflow.com/questions/17312348/how-do-i-set-windows-environment-variables-permanently