Visit Dells web site
Solution
To disable Keyboard Click, perform the following:
Press [FN] + [F1] to enter the Setup program.
Press [ALT] + [P] (both at the same time) to go to the second page.
Highlight Keyboard Click: and press the [Right arrow] key (->) to set
it to Disabled.
Press [ESC] to exit the Setup program.
Now the keyboard will not emit a beep tone when you type.
This will work on inspirion systems, if this doesn't work. Follow this
link to dells web site
http://search.dell.com/results.aspx?...keyboard+beeps