How control volume

[DISAgt]

How do I adjust and mute the volume on a ToshibacC55 laptop?

 

[Ralston18]

More information is needed: i.e., the keyboard keys are not working...?

Do you have the User Guide/Manual?

If not start with the following link:

https/support.toshiba.com/support/modelHome?freeText=1200009184

What OS are you using? What have you tried so far?

E.g.: install new audio drivers. Run the troubleshooters?