I don't use the internal audio. I have 3 Presonus Firestudio Projects for audio, and I don't think they were on during that test, as I wasn't testing them.
i have never defragged the Y drive as it seemed that such a small amount indicated the need, I think.
trying to do error check, said C: was in use and couldn't be checked.
Said Y: needed to be dismounted.
Going back and reading further steps, I see I need to schedule the C., but will post as far as I got before restarting and losing what I typed.