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#11
OK, do this....
Play an audio file, then go to Control Panel and click Sound, click the Playback tab and note any green meter bars going up and down. That's the actual device playing and the one you need to set to default.
To set to default, click the device playing and click set Default. Let me know.
Download the free version of Speccy to see your system specs. I've never used the software myself so...