XPS 9370 - Weird short noise when pressing windows button in keyboard

Hi, 

There is a weird short noise that my XPS 13 9370 emitts if I press the windows button in keyboard. It does not happen every single time I press the windows button, but it does happen in the first minutes I innitialize my computer, and randomly during the time I use the laptop. It has just embaressed me during a presentation when sharing my screen with customers. My drivers are all up to date, Scandisk have been done sussccefully, sound troubleshoot did not find any issue.

Please let me know if you someone could share thoughts.

Regads,