How to Turn Off Notifications
This Article will provide you with step-by-step instructions on how to turn off notifications on your computer
In the system tray, under Hidden Icons (arrow button next to Language button), find and press PCAppStore orange label

You will see Menu, where you need to click Settings

1. Under the Settings Menu, click Notifications with the bell icon 🔔
2. In "How Would You Like To Be Notified?" section, switch to Don't show me recommendations
3. press APPLY button
4. Final step is to restart your PC
From now on, your Pop-Up notifications will not appear