win7试过可以用，安全模式可以启用声音
1、安全模式默认是禁用声音的
2、windows audio和windows audio endpoint build等服务是被禁用的
3、将下面内容保存成.reg文件运行并双击运行
复制内容到剪贴板
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetwork{4D36E96C-E325-11CE-BFC1-08002BE10318}]
@="[6cFgE][Şοûпđ, νìδ℮ô άήδ ğªмè ¢őήťřόℓŀèґš !!! !!! !]"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetwork{640167b4-59b0-47a6-b335-a6b3c0695aea}]
@="Portable Media Devices"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetworkAudioEndpointBuilder]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetworkAudiosrv]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetworkHdAudAddService]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetworkHDAudBus]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetworkdrmkaud]
@="Driver"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetworkMMCSS]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimal{4D36E96C-E325-11CE-BFC1-08002BE10318}]
@="[6cFgE][Şοûпđ, νìδ℮ô άήδ ğªмè ¢őήťřόℓŀèґš !!! !!! !]"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimal{640167b4-59b0-47a6-b335-a6b3c0695aea}]
@="Portable Media Devices"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalAudioEndpointBuilder]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalAudiosrv]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalHdAudAddService]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalHDAudBus]
@="Service"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimaldrmkaud]
@="Driver"
[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalMMCSS]
@="Service"
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