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We have an odd problem that I am stumped on. We just purchased two Dell Vostro 3700 laptops, they came with Windows 7 Pro installed. We have installed Windows Server 2008 R2 on each of the laptops which all works great until we enable Hyper-V. When we do this the sound will stop working correctly and becomes crackly and unusable. If Hyper-V is removed the sound returns. We are at a loss of how to fix this issue.

Any ideas?


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closed as off topic by John Gardeniers, pauska, Zypher Oct 6 '10 at 21:20

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Can I ask how Hyper-V server with WS2008 R2 is not professional IT? We are an ECommerce Shop and use these as our day to day work stations. – Jon Oct 7 '10 at 8:27

Driver updates- that is it. When you install Hyper-V, the "shell" runs in a virtual machine (0).... which has different sheduling properties than the native machine.

I could only point fingers to the sound and posibly lower level hardware drivers.

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I did try the Windows 7 64 bit drivers, will see if I can find anything better. Thx – Jon Aug 19 '10 at 10:01
They should work fine. I would say you need more modern ones. That said, I dont run hyper-v on workstations, so - i ahve no clue whether this actually is a "hard" problem, or one that is supposedly easy and specific to your hardware. – TomTom Aug 19 '10 at 10:14

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