Even though there are still letters on the scraps of paper and, theoretically they could be reconstructed, they are functionally indecipherable. The fact remains, though, that even File Shredding with a good Wipe Disk or Wipe File program has some limitations. While it’s true that, eventually, after the same area of the disc has been written over three or four times the original data will no longer be accessible, it is never really completely obliterated simply because the delete key is used. When wiping a file in this manner it is more like shredding a piece of paper in a shredder. The most effective way to accomplish that is with File hand File set Shredding software. Using the delete key does not completely obliterate information. These programs, and others like them, work by overwriting the space on the disc multiple times with nonsense or garbage.. Of course any software program that can be written can be reverse engineered and so no method using software is totally safe. Putting the scraps of paper back together is a virtually impossible task. If a Disk Defrag has been performed since the file was originally written then file will have been scattered and broken up and relocated to several different locations on the disk. In this case even File Shredding is ineffective. In practical terms what that means is that a portion of the disc, the segment upon which that file resided, is made available so that other data can be written in the same space. The function of the delete key is to remove the address to that file so that it no longer appears in any readily accessible directory or index.File Shredding, or Wipe Disk is another matter altogether. Under these circumstances a simple File Wipe will not work and the only way to be sure the data is completely destroyed is to Disk Wipe the entire segment or partition of that disc thus obliterating all of the files in that segment or partition. The information remains on the disk, often more or less completely intact.There are significant and important differences between deleting a file, File Shredding or File Wiping and Disk Wiping. There are a number of good Wipe Disk programs available with names like Eraser © and Shred-It© and they are the surest ways Household Hand Tools to destroy the data on a disk. The only absolutely certain way to utterly and completely destroy information once it is on a disc or chip is to physically melt the disc itself. By burying the file under so much other nonsense data it renders the original information virtually unrecoverable. When it is necessary to completely annihilate data and all useable traces of it, it is important to perform a Wipe Disc or a File Wipe
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