No sound, cannot start Windows Audio Endpoint Builder service, RPC server not available

I had the audio works fine, so I checked a few services that are sure to value manual, and now I have problems with my audio. I went to all the necessary services that should be started and all have the value automatic and running except for the Audio service of builder endpoint, windows audio service and service audio creative.

When you try to start the audio endpoint Builder service windows I get error 1722: the RPC server is unavailable.

I can't start the service windows audio either. I get an error 1068: the dependency service or group could start.
I tried to change the local system account log in info and now I get a different error message: 1079 the account specified for this service is different from the account specified for other services running in the same process.
I tried to uninstall my sound card drivers (creative audigy 2), my pilots on board her (AC97) then reinstalling both, no chance.

I am running Win 7 Ultimate 64

I am also having a problem with my USB keyboard goes dead. the backlight stays on, but none of the buttons will respond. I have to unplug the USB and use it to hold back in order to reinstall. It seems that if I do not use the keyboard for a while it turns off, but the lighting. I disabled in the power of USB energy saving profile, and the problem persists. My mouse does not turn, so I think it is not related to my power profile. It's a keyboard Saitek Gamers (USB).

Any help would be appreciated.
Thank you
Alex

ETA *.

DCOM Server process Launcher started, automatic
Plug-and-Play started, automatic
Multimedia class Scheduler started, automatic
Remote procedure call (RPC) started, automatic
Windows Audio Endpoint Builder not started, automatic (error message 1722)

Update #2 that I was able to get the right connection info to get rid of the error msg 1079.
I typed in NT AUTHORITY\LocalService and left the empty password.
now, I get the same msg of error as a generator of endpoint... RPC server is unavailable.

Edit # 3
I turned on the power and everything started working as usual.
except that I still have the problem of keyboard.
Thank you

I guess the problem with the Windows Audio endpoint builder, it's that you have disabled the Windows on Windows 7 power management.  For some reason, the audio services cannot start if power management is disabled.

I was going to install the software for my UPS APC power management and requires that the Windows power management is disabled.  I disabled the service and rebooted the system and noticed that the audio services is not started.  You try to start their hand gave the errors you mentioned.  When I started the service of power management, I was able to start audio services.

Microsoft does not mark as services that depend on it, but there is a relationship.  I know that in Windows 7, which they said he optimized use of energy for the audio and I guess audio services are looking at power management to see what type of profile is in use.  Because power management does not work, it is unavailable and terminate the audio services.  Again, this is just a guess, and I can't find definitive answers to this topic.

Tags: Windows

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