Initial setup and onboarding steps for new advertisers using Microsoft Advertising
Hi Tony.
As once you switch from Smart Mode to Expert Mode you can't switch back, I'd say that if in the Top Menu you do not see the option "Tools > Switch to Expert Mode" it means you are already in the Expert Mode.
Yestarday I set up a new account and it was created directly in Expert Mode; in addition to this, your dashboard and, most important, the top (see attachment) and the left menu you see are the same of the expert mode...so I will definitively say you're in expert mode.
Ciao
Gaetano