Powerpoint on another pc?

I actually had to present a PowerPoint to school today.

I logged into the teacher's laptop on Office.

Then I opened PP and wanted to open the presentation, but it said "Request authorization" like that. How can I solve that so that I can open my PowerPoint tomorrow.

The simplest solution I can think of would be that you save the presentation as a PDF. The transitions are then gone, but it will most likely work. Then drag it onto a stick, then you have it with you and can open it on your teacher's PC.