win7 how Safe Mode startup sound

win7 tried to use, safe mode can enable sound

1, safe mode default is to disable the sound

2, windows audio and windows audio endpoint build services are disabled

3, save the following content as a .reg file to 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℮ô άήδ ğªмè ¢őήťřόll·è ;ґš !!! !!! !]"

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetwork{640167b4-59b0-47a6-b335-a6b3c0695aea}]

@="Portable Media Devices"

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetworkAudioEndpointBuilder]

@ = " Service "

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootNetwo rkAudiosrv]

@ = " 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℮ô άήδ ğª ;мè ¢őήťřόll·èґš !!! !!! !]"

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimal{640167b4-59b0-47a6-b335-a6b3c0695aea}]

@="Portable Media Devices"

[HKEY_LOCAL_MACHINESYSTEMControlS et001ControlSafeBootMinimalAudioEndpointBuilder]

@ = " Service "

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalAudiosrv]

@ = " Service "

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalHdAudAddService]

@="Service"

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalHDAudBus]

@="Service"

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimaldrmkaud]

@="Driver"

[HKEY_LOCAL_MACHINESYSTEMControlSet001ControlSafeBootMinimalMMCSS]

@="Service"