I am facing a problem that everytime I click on the left ctrl key its disable the sound, and then clicking again, enables sound. I don't have any kind of software installed or tweak program, as well any sound-card software.

I've tried to search into the control panel, accessibility and sound properties.

Has anyone have a idea what is happening? How to disable it? or at least that I can "mask" the left ctrl key for not do it?

Leonardo