Once I restart my PowerShell session, my old path will be back. If I need to ensure my new environment variable persists, I'll need to step over to .NET, which opens up a lot of other ways to work ...

One of the features I like about PowerShell is automatic variables ... You won't find an automatic variable assigned some obscure variable you forgot you set 100 lines earlier in your script which is ...

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 ...