我不小心把注册表的信息删了，现在没有了声音，郁闷。但我在网上找到了以下的一篇文章
XP和2003都有Windows Audio服务提供音频设备服务，如果被病毒感染或被无意删除掉，即使正确安装了声卡驱动，声卡仍然是不能工作的，具体报错：找不到音频设备；用系统信息工具的directX查看时报错0x8700087错误。
修改这个服务的方法：
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:***********
"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:***********
"Type"=dword:***********
[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:***********
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AudioSrv\Enum]
"0"="Root\\LEGACY_AUDIOSRV\\0000"
"Count"=dword:***********
"NextInstance"=dword:***********
虽然这样，但它没有具体教你怎样做，不知道这篇东西怎样用。有哪位高手指点下啊
參考答案:打开注册表
运行输入regedit回车打开，接着找
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AudioSrv]
这个目录，再找里面的值修改
