The first way is using the Online FLV Converter , You can directly paste the YouTube video URL in the blank, choose the format you like and then click start, after the conversion finished, download it to your computer and then you can insert the video in your PowerPoint presentation.

This tool is totally free but it is very slow and sometimes it can not finish the conversion because of some error information. Hope you are lucky!
The second way is using some professional tool like YouTube downloader. This tool can help you download the YouTube video and convert it. When you open a YouTube video, it can download the video automatically. Open YouTube downloader, then main interface shows (see the illustration below). Click the “+” button to paste your YouTube URL in the blank, and then click OK.

After you finishing downloading you can see your video in the left “categories”. Click “play” to view the downloaded video. But the most important thing we must do is converting our FLV video. Now click “Convert” and choose a proper format. AVI and WMV are recommended.



How to convert PowerPoint to YouTube video with PPT2Video
As PowerPoint is an easy and powerful tool to make beautiful slide show. We always use it to make slides to share with family or friends. And if your slide show is very funny or unique, you would be eager to share it on YouTube or MySpace with more people.
But, you know YouTube only accept video formats such as Mpeg AVI MP4.
How can we put PowerPoint slide show on YouTube?
That is, how can we convert PowerPoint slide show to video?
Now, let’s do it!
Prepare:
1, Download and install Wondershare PPT2Video Converter
Download:http://www.ppt-to-dvd.com/download/download.php#downppt2video
2, Make sure you have PowerPoint on your computer
3, Launch PPT2Video Converter and take an overview of it
Tips:
What video file formats can I upload?
YouTube accepts video files from most digital cameras, camcorders, and cell phones in the .WMV, .AVI, .MOV, and .MPG file formats.
What’s the best format to upload for high quality? + Video
MPEG4 (Divx, Xvid) format
320×240 resolution
MP3 audio
30 frames per second
How long/large can my video be?
10 minutes time
100MB file size limit.
Steps:
1, Import PowerPoint files
2, Select output format
3. Start converting
4. Upload the video to YouTube
1, Import PowerPoint files
Up to 8 files can be imported at a time.
2, Select output format
Select the format as below. It is the best video format for YouTube
3. Start converting
Just click Start button, the conversion will start automatically.
4. Upload to PowerPoint to YouTube
Go to YouTube and upload your video.
http://www.youtube.com
The tools I mentioned above can be downloaded here:
1. Wondershare PPT2Video Converter :
http://www.ppt-to-dvd.com/download/download.php#downppt2video
TAG: PowerPoint to youtube, powerpoint on youtube