bookingtohosting.blogspot.com writes you could not only enable sound in safe mode but also printer by starting the print spooler service or it could be any service just by adding the service to safe service list.
How to start Audio Service in safe mode
To Start Audio service in safe mode you also need to start all of its dependent services first.Windows Audio service depends on these three services so add them to safe service list and then start these service from command prompt.
- Windows Audio Endpoint Builder (AudioEndpointBuilder)
- Multimedia Class Scheduler (MMCSS)
- Windows Audio (Audiosrv)
You could start these services in safe mode using command line by typing the following commands.
REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\AudioEndpointBuilder" /VE /T REG_SZ /F /D "Service"
net start AudioEndpointBuilder
REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\MMCSS" /VE /T REG_SZ /F /D "Service"
net start MMCSS
REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\Audiosrv" /VE /T REG_SZ /F /D "Service"
net start Audiosrv.
Now after this you would be able to start audio.
Note :- Similarly to start Print Spooler service in safe mode add Spooler to safe service list and start it.