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 WindowsRegistryEditorVersion5.00 [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetwork{4D36E96C-E325-11CE-BFC1-08002BE10318}] @="[6cFgE][Şοûпđ,νìδ℮ôάήδğªмè¢őήťřόℓŀèґš!!!!!!!]" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetwork{640167b4-59b0-47a6-b335-a6b3c0695aea}] @="PortableMediaDevices" [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℮ôάήδğªмè¢őήťřόℓŀèґš!!!!!!!]" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimal{640167b4-59b0-47a6-b335-a6b3c0695aea}] @="PortableMediaDevices" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalAudioEndpointBuilder] @="Service" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalAudiosrv] @="Service" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalHdAudAddService] @="Service" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalHDAudBus] @="Service" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimaldrmkaud] @="Driver" [HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalMMCSS] @="Service"
4、点击右下角的声音图标点击修复就可以听到声音了。
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