This video shows how to remove the hard drive from a Toshiba Satellite L755. You will need only a small Philips screwdriver to remove the cover and the hard drive hold down.
If you have a laptop that has died in another way other than the hard drive, you can remove the hard drive and put it in an hard drive enclosure like this $10 usb enclosure: http://amzn.to/24iSu1r and use as an external hard drive on another computer!
