Environment variables are name-value pairs for various programs or processes on an operating system. On Windows, the environment variables store all sorts of information about the operating system ...
On Jan. 17, 2018, Microsoft's Scott Hanselman asked Visual Studio developers if they would like a PowerShell prompt with pre-set PATH and Environment variables baked right into the IDE. They said yes.
The Windows 7 System Recovery Command Prompt is a text-based console that allow you to perform maintenance and recovery tasks on your computer by typing the commands that you would like to execute.