I have a hosed hard drive on a Toshiba laptop. I do not have any recovery software to use. The Laptop owner took the laptop to the IT dept where he works, and for some reason, they deleted the main partition on the hard drive. I attempted to install Win8 on the drive, but to no avail. I can see the recovery area of the hard drive, as well as all of the folders associated with window8. Will a start up disk solve the problem?