WD5000AAKS strange noise

Hello everybody,

I have a big trouble. My hard disk is WD Caviar Blue SATA Hard Drive 500 GB

It’s making strange noise when computer starts it’s the same like in this video  http://www.youtube.com/watch?v=n1mhDRA7pB8

Bios doesn’t see hard drive…

Is there anything i can do to backup information from that hard ?

I you can hear a clicking sound, there is not a lot you can do, call tech support to replace the hard drive. If you need to recover your files check the link below for some data recovery companies that you can contact.