I agree 100% Dokie, I am very grateful for the help also.
As a foot note, I tried the Toshiba website and was basically refered to other sites. I then rang the Toshiba helpline, and was given basic info as my warranty had run out. They suggested I take out one of their extended warranties at £150.00, then send the laptop for repair, they would then charge for the hard drive, £100, to download windows and drivers, £30.00. all presuming it is the hard drive. I shall bite the bullet and buy a new laptop for my daughter. However as my laptop dates back to the stone age, I am going to try a repair my daughters broken myself as a learn as you go project. Will keep all posted once the caddy/enclosure arrives.
Once again, many thanks.