To get rid of the annoying notification sounds in Windows 10 computer, you can use the following two methods to turn off notification sounds.
Video guide on how to turn off notification sounds in Windows 10:
Way 1: Turn notification sounds off in PC settings.
Step 1: Open PC settings.
Step 2: Access Search and apps.
Step 3: Click Notifications and tap the switch under the setting called "Play notification sounds" to turn it off.
Note: This method is unworkable in computers running Windows 10 Enterprise.
Way 2: Turn off notification sounds in Sound settings.
Step 1: Click the lower-left Start button, input sound and select Sound from the results to open Sound settings.
Step 2: In the Sound dialog, open Sounds and choose Notification in the program events.
Step 3: Tap the Sounds bar, select (None) in the list and click OK.