posted on Nov, 16 2012 @ 05:01 AM
First thing I would do is be sure you don't have any sort of messaging programs running in the background. Now and then, things can get installed
that we don't notice, or be running, and we don't realize. Checking the processes tab on the task manager is a good place to hunt. Some things
won't show up in the first tab, but will there. Checking the start up stuff, as someone else suggested, is also a good idea (for anyone, really).
Another thing to try is to start in safe mode, and see if it happens then. Try both with and without networking. If that stops it, then it's
something running. If not, then it would either be a really sneaky program, or some sort of signal picked up from elsewhere. What my dad called
"skip" for old radios, but somehow getting onto your speakers. Of course, a good virus scan isn't a bad idea, just in case!
Oh, if it was me, I would be sure I didn't have a mic on, in case this was some program that worked more than one way.
My sister's baby monitor used to pick up stuff from a neighbor's monitor. So, who knows? Weird, though!