最可能的原因是windows音频服务丢失,解决办法:
检查windows audio服务是否存在,不存在,则复制下面代码
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/AudioSrv]
"DependOnService"=hex(7):50,00,6c,00,75,00,67,00,50,00,6c,00,61,00,79,00,00,00,/
52,00,70,00,63,00,53,00,73,00,00,00,00,00
"Description"="管理基于 Windows 的程序的音频设备。如果此服务被终止,音频设备及其音效将不能正常工作。如果此服务被禁用,任何依赖它的服务将无法启动。"
"DisplayName"="Windows Audio"
"ErrorControl"=dword:00000001
"Group"="AudioGroup"
"ImagePath"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,/
74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,/
00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,/
6b,00,20,00,6e,00,65,00,74,00,73,00,76,00,63,00,73,00,00,00
"ObjectName"="LocalSystem"
"Start"=dword:00000002
"Type"=dword:00000020
[HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/AudioSrv/Parameters]
"ServiceDll"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,/
00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,/
61,00,75,00,64,00,69,00,6f,00,73,00,72,00,76,00,2e,00,64,00,6c,00,6c,00,00,/
00
"ServiceDllUnloadOnStop"=dword:00000001
[HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/AudioSrv/Enum]
"0"="Root//LEGACY_AUDIOSRV//0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001
(注意后面的回车)
复制以上代码保持成.reg文件,导入注册表!然后重新启动计算机!
如果依然无法解决,重新安装驱动!