win7试过可以用，安全模式可以启用声音
方法/步骤
1、安全模式默认是禁用声音的
2、windowsaudio和windowsaudioendpointbuild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WindowsRegistryE蟠校盯昂ditorVersion笙剽茑镙5.00[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Network\{4D36E96C-E325-11CE-BFC1-08002BE10318}]@="[6cFgE][Şοûпđ,νìδ℮ôάήδğªмè¢őήťřόℓŀèґš!!!!!!!]"[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Network\{640167b4-59b0-47a6-b335-a6b3c0695aea}]@="PortableMediaDevices"[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℮ôάήδğªмè¢őήťřόℓŀèґš!!!!!!!]"[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\{640167b4-59b0-47a6-b335-a6b3c0695aea}]@="PortableMediaDevices"[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