First, please check your disk drive and make sure there is no disk inside of it. If there is, then remove it. Reboot the computer and see if the noise stops.
If yes, then call us here at InfoTech and inform us that the optical drive(disk drive) needs to be checked out.
If after the removal of a disk(if any) and the reboot, your computer is still making this noise, please proceed to shut the computer down completely and call InfoTech for further assistance.
We can help! You can e-mail us at email@example.com or contact us by phone at (254) 295-4658.