If your hard drive is giving error messages is cheaper to install a new hard disk and all important data shall be transferred to the new hard disk. Depending on the technical skills, the importance of data, time and money available various options are available.
How to transfer data for a new installation of Windows operating system. The Mac can read data from a formatted disk in Windows, but the naming of the device must be compatible.
This is recommended because the system will run faster.
How to do it
1. copy of all important documents, text files, software installation, and important data on CD/DVD/USB device depending on the size of the file. It is recommended that multiple backup copies of data.
You can transfer data to an external device connected to the USB port.