My microphone mutes itself
I have an Acer Aspire E5-575. My microphone mutes itself after I unmute it in microphone properties. I have the properties box open, unmute it, then a few minutes later it mutes itself. I get an error message when I join a Skype call saying my microphone "is muted on the desktop". The microphone also doesn't work in Hang Outs so it isn't a Skype problem, but I'm hoping the error message is useful. Any suggestions? My computer was kidnapped at a convention I was at last weekend to show video. The sound was connected to the outside speaker via the headphone jack. The problem started this week so maybe this set off the problem.