This project came from the masm one. It was rewritten in fasm and improved slightly.
Just drag & drop files on executable and your unneeded any more files will be deleted permanently without any recovering.
Bug reports are welcomed;)
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News:
- improved command line parser.

i doubt if two rewrites are enough... If you want to really shred files, you should use something stronger

And then there is still no guarantee with a journaling file system.

vid
you can change the source so it will erase as much as you like. I made it 2 with notted bits set so 1st time is 0 and second one is 1...[/b]

I don't really do secure wipes of files on disk. My understanding is that it doesn't work so well in NTFS anyway. If I wipe it's usually the whole partition with http://dban.sourceforge.net/.

I think the DBAN site has some good information about the way to best securely wipe information.

you probably need raw file access to erase a file properly.

check out this [url="http://www.microsoft.com/technet/sysinternals/Utilities/SDelete.mspx"]here[/url] by Mark Russinovich

and still it needs more than one overwrite of file. It is often possible for every byte on disk to find last few values it had

What would be interesting, to change the subject a little, is if they could take advantage of this fact and allow people to double or triple the capacity of their current hard drives. I guess it wouldn't be reliable enough for that to work though.

i think that technology is slow, expensive, not 100% safe, etc. etc.

I saw that technologi in work - simple 1.44MB disket could be enlarged to appr. 5MB - via restoring overwritten info... but these tests were long ago in early era)

All those "disk doubling" techniques always ended up with corrupted data.

Iirc, however, there were made some newer floppy hardware with better quality, that was able to store more data on a floppy, relatively safely. But forget it with standard hardware and disks.

Chances are that if you want something perminantly destroyed badly enough, you're better off just taking your hard drive and trying to melt the thing (since cutting it isn't perfect) and buy a new HD. Or if you're not rich, make a file that replaces that space, cause if some one is going to that level to find what was on your HD, they just *might* stop if they see something that's STILL THERE.

kohlrak: you see, and other people save few bucks for HDD and use some good thrashing utils.

If that's the case, then it's probably only possible to just "thrash" using this tool and then write a file there that you don't delete.

You can always test your ability to retrieve a file...

http://www.cgsecurity.org/wiki/TestDisk

I find that after defragmenting a hard drive it's usually fairly hard to recover the data.

Here is an open source application that does secure file deletion and empty space wipes. It might be of help to look at the source.

http://www.tolvanen.com/eraser/

New version. improved command line parser