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#11
Laptop only has usually one jack for this 3.5mm. Yeah i am figuring should mute it in this case say compared to a desktop with a front jack for integrated sound card and if an additional PCI sound card with a jack, then there is differences to it. Not too familiar with laptops. Your case hard to think the operating system has changed anything or is causing this to happen, but maybe the settings of the sound device defaulted back and places you need to look are within the sound device settings, whether it be realtek as an example of software not the device manager. These are the usual places along with Sound in the Control Panel as i am still not sure what using the device manager has to do with this as far as settings goes as you are telling me, it's only a place for system and hardware drivers.