There are 3 main ways to record a PowerPoint presentation: 1. Using the built-in PowerPoint recording tools to record audio and slides. 2. Using Camtasia Studio recording toolbar within PowerPoint to record audio, slides, and camera. This provides more options for customizing the recording. 3. To cancel a recording in progress, press Esc to stop recording and then click Cancel when prompted to save, deleting the unfinished recording.