Hello Duy,
Thank you for choosing AVG. We would like to inform you that Online shield is a Pro feature and it is not available in the free version of AVG at the moment. You can share your product feedback and new feature request in our product feedback page here http://avgclick.me/AVGfeedback .
Duy, This AVG feedback link is also available ( link removed ). AVG Guru
Can you add online shield for avg free and add sandbox in software analysis for avg internet security ?
Duy, This AVG feedback link is also available ( link removed ). AVG Guru