Also, unstable internet or the absence of the internet can prevent you from inserting video in PowerPoint. Sometimes, you cannot insert video in PowerPoint because the media format lacks a proper codec. Why I Cannot insert video in PowerPoint?.You can use embedded videos on Windows and Mac versions of your PowerPoint. However, if you see flash embedded videos are no longer supported, it might mean the media format is not suitable for the Office version you are using.Ī flash embedded video is when a video plays directly from the PowerPoint presentation rather than having you open a web browser window to play a video. Likewise, videos saved on your device can be embedded in your PowerPoint presentation. You can embed online videos or videos when you're using PowerPoint for the web and Microsoft 365. Flash Embedded Videos Are No Longer Supported