Powerpoint properly

Hello Martalopez69 -

We may often have configurations with multiple screens that could be causing the issue; I include an article on our support site, hoping that this will help you correct your problem. https://support.zoom.us/hc/en-us/articles/203395347-Screen-sharing-a-PowerPoint-presentation 

Additionally, you could also use your slides as your virtual background. More information on that can be found here: https://support.zoom.us/hc/en-us/articles/360046912351-Sharing-slides-as-a-Virtual-Background