Some audio devices could not be opened

Hi,
For this HP config
http://dl.dropbox.com/u/40211031/t15.png
HP Probook 4530s
Intel Core i5-2430M CPU @2.40GHz
RAM: 8 GB
64-Bit OS
when starting the Virtual Machine, I did get this
http://dl.dropbox.com/u/40211031/t19.png
Any advice? Many thanks
Many thanks & Best Regards,
HuaMin

Since this problem appeared out of the blue I suspect a Windows update.
Googling "windows 8 update loss of audio" highlights a recent update
KB2962407. Uninstalling this update solves the problem.
Of course I now wait to see what other problems this unistallation
causes :-)

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