Just a thought, if by clean boot you mean you formatted and reinstalled XP, it could be that you need to reinstall the Audio driver, I did the same and had to reinstall it from my motherboard disk.
Dell XPS 13 9370 (2018) review
The art of 'British' pulp fiction
Best password managers for Mac
TV & streaming : comment regarder le Tournoi des Six Nations 2018 ?