To create a video on YouTube, users can either upload pre-recorded video, create a slideshow, or record live using their webcam. When recording live, users must give the website permission to access their microphone and camera. Users can then edit the video by adding a title, description, and tags before selecting a privacy setting like public, unlisted, or private. Additional editing options include adding captions, annotations, or an embed code. Users can also create a slideshow with photos and background music or record their computer screen for tutorials.