How do I change the default command prompt directory in windows 7?

When I open command prompt it’s now defaulting to the user folder rather than system32 as it used to.

How do I permanently change it back to system32 like it’s supposed to be rather than just a temporary CD command?

I have read that this change has occurred due to an installed program changing an environment variable but not sure how to correct it.

This is a windows 7 machine so there is no right click “open in file location” setting.

Thank you.