what could be the problem with a standard harddrive – (WDC, Maxtor, quantum) that fails 2 complet defragmentation? starts over & over & over again, gets up to 10% and statrs over again, never completing. I’ve reset the power settings / scr saver notto interfere, and the same thing happens. normal HD primary partition nothing special, just will not complete defrag but will complete scandisk. how can I correct this problem and defrag my harddrive?