Checkdisk is the first thing. Ussually can fix most problems before they become bad.
where are you seeing a red light? on the case?
I'm assuming windows 2k or greater ...
open my computer, right click the drive go to properties. Then select tools then Check now. select both checkboxes and then click start. click yes at the next prompt and then reboot. this should perform the checkdisk for you at boot up.
thank you for you reply,
but the problem is I can't find the hard disk on my computer and if I insert the hard disk into the USB port windows says unknown device and the light still red.
thank you again,
I hope that you understand me.
Now on problems the HD's socket was bad it is not fixed it moves,
bnt when I move the plug the os read it and it becomes good.
I must change the cover to be good.
I thank Inaris & weswes upon thier interacting with me.