How Do You Make a LIVE screencast of your desktop?

I was wondering how to make a LIVE screencast of your desktop for free.

deadrascal8 years ago
yeah kind of late but just adding this for people coming here from google.

you can use  free for non commercial use and doesn't need installation 
fwjs288 years ago
ctrl+alt+prnt scrn now if you mean a video then hypercam is nice (although it tags all vids in the corner with its title...can be a pain)