Why does CCleaner only take 1hr to free wipe ~400GB?

I used both Eraser and CCleaner to wipe my laptop hard drive with the same file erasure method. How come CCleaner takes only an hour, whereas Eraser takes upto 5-9 hrs using the same 1-pass (pseudorandrom) method with cluster tips enabled? What is Eraser doing that CCleaner isn't doing?

Do you also have it set to wipe the MFT?

what operation system are you running?

what is the rpm of your disk?

This is the third thread you've opened in "CCleaner Discussion" on the subject of secure deleting, one which has already been closed, and a fourth one you didn't open but added your two penneth to, which was also closed.

I think you've had all the members time you really need, which is why I'm closing this thread and the others you opened.

If you require more information, please read the Piriform documents ...

http://www.piriform....er-be-recovered

http://www.piriform....free-disk-space