WinRAR Wizard interface is designed for novice users and allows to perform basic compression and decompression operations using the simple step by step procedure.
You need to press Wizard button on WinRAR toolbar to display the wizard dialog. By default this button is visible both inside and outside of archives, but you may disable or enable it like other toolbar buttons with "Select buttons…" in General settings dialog. Another option of the same, "General settings" dialog, "Activate Wizard on start", allows to run Wizard every time when WinRAR starts.
Every Wizard dialog contains a brief instruction at the top, describing dialog contents and possible user actions. You may also press Help button to get more detailed instructions.