Have you had a look in Control Panel/Sounds and checked your settings there?
What speaker set up are you using? Loose connection? Have you installed any software for this vocal commands thing?
Has the sound be muted for email alerts?
Samsung Galaxy S9 review
Wacom Cintiq Pro 24 and 32 review – hands-on
When is the next Apple event?
Qu’est-ce qu’Amazon Prime ?