no audio output device is installed

[SHARATH_ANANDAN]

hi,

    my lap has recently been muted and no kind of sound is heard. The volume sign in taskbar is shown with a cross mark inside a red circle at the bottom right corner of the volume sign 

and when the curzor is brought near to the volume sign, they show "no audio output device is installed" and when i click the sign they go for trouble shoot and reports "hardware changes might not have been detected".

i tried to install sound card (high definition audio) for my laptop (probook 6460b).when installation was over, the audio problem was solved and when the laptop shuts down, the problem occurs again.

please help and reply as soon as possible

thank you

[banhien]

@SHARATH_ANANDAN 

Please do a clean install Audio software/driver, this should help.

(a) Download the following driver and save on your computer, (for Windows 7 32 bit)

    https://ftp.hp.com/pub/softpaq/sp62501-63000/sp62585.exe

(b) Go to Device Manager, Sound to uninstall sound driver and reboot,
(c) Right click downloaded file and select Run as administrator,
(d) Reboot again.

Regards.

[SHARATH_ANANDAN]

@Banhien

sound is not showing when i went to device manager.

what to do next?

thanks for your reply 

[SHARATH_ANANDAN]

while now i have updated to windows 10 pro and still the sound is not showing up. well its shows somethings and goes after a shutdown.

thanks for your reply