1. Select the Start  button, and then select Settings.
2. Go to System > Notifications & actions.
3. Scroll down to see a list of apps and find Cradle of Empires.
4. Click on the app name to open settings. Toggle the slider to Off position to disable notifications.

For Windows 11:

1. Select the Start  button (the one with 4 squares), and then select Settings.
2. Go to System > Notifications. Scroll down to see a list of apps and find Cradle of Empires. Toggle the slider to Off position to disable notifications.