QUOTE (Andavari @ Feb 14 2009, 06:35 AM)

You need to read the Eraser documentation for a clear answer.
When using Recuva after running Eraser to wipe the free space Recuva won't be able to find those files anymore. The only time I've noticed when Eraser can't get rid of them is when they're locked by Windows in the MFT.
The only way to really get rid of everything on the disk is with something like DBAN, however that will remove everything on the disk including Windows.
My reccomendation would be
Active@ KillDisk Hard Drive Eraser.
I've been using it for 2 years or so. It dismounts Hard Drives before wiping them and everything gets wiped + MFT, living good files behind.
To wipe the OS drive it lets you create a boot CD and run the program from there.
I do that every 6 months to keep my OS drive fresh.
Free version comes with only one pass zeros though