How do you reset Steam?

How to restart Steam from within the application

1. Open any Steam window.
2. In the top-left corner, click the word "Steam" to open a drop-down menu.
3. From the dropdown menu, select "Exit" (PC) or "Quit Steam" (Mac). …
4. Open Steam again, and log back in if you’ve been logged out.
5. That’s it for a basic restart.