Most common reasons for this trouble are:
- Such kind of troubles arise after some device / software is installed which tries to gain control as default
sound device.
- Also while un-installation of certain softwares, some shared files are
removed. At times some important shared file can be deleted which causes
troubles with working of sound drivers.
- While installing certain games, it tries to gain control of sound or video
drivers and may accidentally harm these driver softwares.
Lets see the ways to fix such troubles
Step1 : First of all check what is your default audio device
setting. For this, open
Control Panel > Sounds and audio devices,
open Audio tab as shown in picture below.
See that the Device selected is your sound-card or on-board audio device. It
should not be blank or some modem device. Set the Default sound playback and
sound recording device correctly from the
drop down
menu. If your device is not there in this list see the step 2.
Step2: If the step 1 is not successful, it means that your
sound device driver software has become either corrupt or has been accidentally
un-installed. In such case, install the sound driver from the
sound-card/mother-board driver CD. You can also download the latest driver if
you don’t have the driver CD. After you install the driver, restart your
computer, and then check the settings as in step 1 again
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