If you're running Windows 10 with default settings, you've probably noticed apps creeping into the right (tile) side of your Start menu -- apps you didn't put there. Clicking on these "apps" opens up the Store, where you can purchase and download them. Microsoft calls them "suggestions," but they're actually just ads.
That's right, Microsoft is putting ads in your Start menu. Is nothing sacred?
Luckily, ridding yourself of these ads -- sorry, suggestions -- is a quick fix.
Open Settings and go to Personalization > Start. You'll see several toggles, but the second one should say "Occasionally show suggestions in Start." Turn this toggle to Off and close the Settings menu.
That's all you have to do! No more Start menu ads for you!