This tutorial is applicable for BlueStacks version 188.8.131.5222 or above.
Notifications on BlueStacks can be classified into three types:
1) Updates available for BlueStacks that users receive from our side. You can check this in the message box on the top navigation bar as shown below.
2. App updates or app installation complete popup that you receive on right bottom of your system.
3. Android notifications that you can check by scrolling the top bar as on any android device.
If you wish to stop receiving notifications please click on the checkbox "Remember my choice" while you close BlueStacks and click "No" to save your choice.
You can also disable app notifications by selecting "Notifications" from preferences from the top navigation bar.
Contact us at firstname.lastname@example.org if you face any difficulty using BlueStacks.