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u need to invest in a screen recorder for better quality it cost like 30 $ or you can download one for free... here is what i found...
http://www.hongkiat.com/blog/win-screen-recording-softwares/

also one little trick...

The Game bar is a toolbar which Microsoft meant for gamers to use to capture screenshots of their high scores, as well as video footage of their gaming skills. Despite the name, it is not limited to use within games, and you would be forgiven for having missed it as you browsed through the latest version of the operating system -- you're not going to stumble across it by accident.

Hit the Windows key and G, and a popup will appear asking if you would like to open Game bar -- there are no Yes and No buttons, but check the 'Yes, this is a game' box (you will have to do this the first time you access the screen recorder in any application).

windows_10_game_bar

Things are pretty self-explanatory here -- just hit the standard record button to start capturing footage. Hit the button again to stop recording, or you can use the Windows key + Alt + R keyboard shortcut. The Settings button can be used to place a limit on the length of videos that can be recorded -- this helps you to avoid filling up your hard drive if you forget to stop a recording. Videos are saved in MP4 format in the Videos\Captures folder.