You know, I was going to suggest reinstalling the usb, as well as the audio drivers. But all that should have been accomplished when changing windows OS. I would say (shooting in the dark) try that anyways, or trying a different audio software player. Maybe try to update them. But I honestly believe it is some kind of cross interference on the motherboard that's causing the issue is what is sounds like to me. It happens on ALL usb ports? I'd say the best way to nip it in the butt if it is a motherboard interference issue, get a sound card. It may bypass what could be causing the issue, hardware wise.