Okay, the first thing is you should have JAVA on your PC/Laptop. Check these simple steps :
1. Copy the URL’s video (it should be http://www.youtube.com/watch?v=en0aCKXu1NE or else)
2. Open KeepVid.com
3. Paste the URL you have copied and clink the download button.
4. Pick your video type, it has 3gp, flv, MP4 and WebRip . Click it to download
I provide the video tutorial.
Happy downloading fuckers 🙂