Win7 tried to use, Safe mode enables sound
1, Safe mode is to disable sound by default
2. Services such as Windows Audio and Windows Audio endpoint build are disabled
3, save the following content as a. reg file run and double-click to run
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Windows Registry Editor Version 5.00
[hkey_local_machinesystemcontrolset001controlsafebootnetwork{4d36e96c-e325-11ce-bfc1-08002be10318}]
@= "[6cfge][şοûпđ,νìδ℮ôάήδğªмè¢őήťřόℓŀèґš!!!!!!!]"
[Hkey_local_machinesystemcontrolset001controlsafebootnetwork{640167b4-59b0-47a6-b335-a6b3c0695aea}]
@= "Portable Media Devices"
[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}]
@= "Portable Media Devices"
[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, click on the lower right corner of the sound icon click to Repair can hear the sound.