One of my customer call me and informed me that his pc lost the sound, I go to his home and check pc for sound driver through device manager and found that there is no driver installed.I told the customer that some one has uninstalled the sound driver but he said that when he shutdown the pc last night it was ok when He restsrt it in morning he dont get Windows startup sound or any type of sound.I think He tells lie, and I reinstalled Sound driver I play demo and it is ok, But after second restarting the sound is gone I check for driver there is no driver, It surprised me, where the driver has gone? System specification is as under.
P-4 1.5Ghz, 845Gl chipset MObo(mercury),40 Gb hdd.256mb sd ram, O/S Windows 98se,

I'm sure you always run a virus scan before anything else. Did you disable the virus detection prior to the reinstall of the drivers?

Did you check for duplicates in safe mode?

Have you disabled all other devices and started with a basic system?

I think He tells lie
Hehe, don't they all! :D

Check out for any device IRQ conflicts. Also try installing the latest available driver. A virus scan with lates virus definitions is also a good suggestion.

:)

Thanks all for responce

Check out for any device IRQ conflicts. Also try installing the latest available driver.

There is no IRQ conflicts. and driver is lataest because pc is only one month old.There is no virus I scan it with latest virus pattern.

Hi there.

I think you probably have a software problem. I suggest you try reinstalling Windows to see if that will fix the problem. Also, if using Win XP or ME, you might try the quick restore feature and restore it to a point when it worked fine.

All the best!

hey U² :p ,

try booting into safe mode. goto device manager and remove all the instances of sound drivers. these are called ghost drivers. reboot.

let windows find and install the driver.