関連ワード:  both shift keys not working on keyboard    shift keys not working on keyboard    shift key not working on keyboard windows 10    shift button not working on keyboard    left shift key not working on keyboard    right shift key not working on keyboard    shift key stopped working on keyboard    shift keys not working on mac keyboard    shift key not working on external keyboard    shift key not working on logitech keyboard  
結果 : both shift keys not working on keyboard