I have used the latest version of Eraser 6 to wipe the free space on drive C using a single pass and to erase cluster tips. The run proceeds OK through the cluster tip and wipe free space with the status bar showing 100%, however the main status bar shows 90% and the program does not complete the run even if left for hours. I have to manually shut it down. What is causing this and can I work round it? I am running VISTA premium in Admin with a quad core intel procressor and 4 gb of RAM. My HD is 600gb in size split into two partitions with the C: Drive 200GB