How do i screencast,record screen in blender 2.83?

i want to record a modeling job and i dont know how to screencast i tried alt+f3 but doesnt work and i can find the shortcut

You did download and install the Screencast addon…Correct?

as for Capture to Video…try looking at ShareX …Lots of Potions as well as save to .GIF!

i want to record a video,and sharex isnt free for comercial purpose

OBS Studio is great for capturing & live stuff.