Dual boot

Apr 25, 2021
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Setup dual boot for win7Pro and win10Pro.

After installation the option to select OS works Ok.

Win10 boots ok, all apps and installed programs work OK.

Win7 boots with all programs and data OK. except no sound. Win10 sound OK


Device MGR (win7) shows sound drivers high definition sound device is working normally and best driver installed.

Services show win audio and all of its dependent services can not be started.

Before dual boot added to win7 computer, sound worked OK.

All audio services on win10 are running.

Latest updates for win7 amnd win10 installed

How to correct this problem??

Thank you for any help,

Frank Lollar

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