Turning off Multiple Images…

Hey WordPress folks,

Is there a way to make wordpress not automatically make multiple images of an uploaded image? ie: I upload:

exhibit_test.jpg

I few sizes outlined for multiple thumbnails https://www.ads-software.com/extend/plugins/multiple-post-thumbnails/ so WP goes off and makes:

exhibit_test-160×160.jpg
exhibit_test-50×50.jpg ..etc

I’d prefer WP to not do this, this time around. Anyway to change that?

Thanks

Nadine