PC with Vista recently 'failed to play test tone' (error 4E63:0F1B)

original title: PC with Vista recently  'failed to play test tone' (added error code to title)

Dell Dimension E520 running vista home basic

Ran Dell Boot Up diagnostics test and speakers played but subwoofer didn't and reporter error 4E63:0F1B

No sound at all; Speakers not muted; harward checks indicate devices are working ok. Have re-installed drivers.

Windows audio FIXIT didn't identify any problems.

Believe the problem occurred following MS security update on 14th May 2012, but didn't realise that had no sound for a while and cannot boot from a prior period as no longer an option.

Twin Altec Lancing speakers connect to multimedia subwoofer which in turn connects to the PC &  play ok through sperate MP3 player




Question Info

Last updated May 15, 2018 Views 368 Applies to:

Problem solved. I Had 'Automatic updates' switched on. I uninstalled all of the updates as far back as 14th May 2012 when I first encountered the problem and hey presto sound started playing! Most of the updates were 'Update for Windows Security xxxx KBnnn'

I've now switched off automatic updates as my system is stable and working. 

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