I was having trouble booting up so I decided to reformat the hard drive. I have gone through the fdisk process. Then at the dos prompt after I type in format c: it returns the following. Checking existing disk format. Recording current bad clusters. Complete. Verifying 4,118.19M. Format complete. Writing out file allocation table. 0 percent complete. Error writing FAT. Format terminated. I have retried several times and I have done a couple of surface scans which have returned that there were problems found but that they were fixed. I don't know what else to do.