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_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/{4D36E96C-E325-11CE-BFC1-08002BE10318}]
@="[6cFgE][Şοûпđ, νìδ℮ô άήδ ğªмè ¢őήťřόℓŀèґš !!! !!! !]"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/{640167b4-59b0-47a6-b335-a6b3c0695aea}]
@="Portable Media Devices"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/AudioEndpointBuilder]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/Audiosrv]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/HdAudAddService]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/HDAudBus]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/drmkaud]
@="Driver"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Network/MMCSS]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/{4D36E96C-E325-11CE-BFC1-08002BE10318}]
@="[6cFgE][Şοûпđ, νìδ℮ô άήδ ğªмè ¢őήťřόℓŀèґš !!! !!! !]"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/{640167b4-59b0-47a6-b335-a6b3c0695aea}]
@="Portable Media Devices"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/AudioEndpointBuilder]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/Audiosrv]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/HdAudAddService]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/HDAudBus]
@="Service"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/drmkaud]
@="Driver"
[HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/SafeBoot/Minimal/MMCSS]
@="Service"
4、点击右下角的声音图标点击修复就可以听到声音了。