My PC shows 'no audio devices' AND will NOT let me re-install SoundMAX Integrated Digital HD Audio Driver (Notes: 'The hardware was not installed because the Wizard cannot find the necessary software.') What 'software' are they referring to? Dell Optiplex 745, running Fire Fox. Completed all My Dell Diagnostics successfully, everything passed.
Go to Dell UK support page for optiplex 745 ClickHere and all the drivers and how to install them are there. You could input your service tag number or let it do a system analysis for a more tailored to your pc list of drivers.
On general looking at list (XP operating system) you seem to need the 'ADI 198x Integrated HD Audio' driver.
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