no audio output device is installed

[Erfan_edm]

Hello
I updated my drivers and it says no audio output device is installed.

 

[i7Baby]

How did you update your drivers?

Was it working before?

In Control Panel, Device Manager, is the Audio Device(s) shown as working?

 

[Erfan_edm]

I updated it by ibiot driver booster. Y es it was working before and in Control Panel shown as working properly.

 

[i7Baby]

Go into Device Manager and the device that isn't working. And get it to do a driver update itself.

 

[Erfan_edm]

It says the best driver software for your device is already installed.

 

[i7Baby]

Does its say 'this device is working properly'?

 

[Erfan_edm]

YES

 

[i7Baby]

In Control Panel, Hardware and Sound, Manage Audio Devices what have you got enabled in Playback?

 

[Erfan_edm]

Its speakers that is enabled......

 

[i7Baby]

What do you want enabled? Enable them.

Have you got speakers?

 

[Erfan_edm]

Sorry I have speakers but after updating drivers there is no sound.

 

[i7Baby]

What do you want enabled? Enable them.

 

[Erfan_edm]

I have laptop and its only speakers that is already enabled.

 

[i7Baby]

Sounds like your audio chip is dead. You'll have to replace the laptop or at least the motherboard. Get it checked at a laptop repair place. Is it still on warranty?