Explain methods of data disposal?
916809
The problem\n\nWhen most computers delete a file, they do not actually remove the contents of the file. Instead, they simply unlink the file from the file directory system, leaving the contents of the file in the disk sectors. This data will remain there until the operating system reuses those sectors to write new data. Until the old data is overwritten (and this may take months or longer), it can be recovered by programs that read disk sectors directly, such as forensic software (so called because it is used to obtain evidence in criminal investigations and also in legal discovery).\n\nIn addition even if a sector is overwritten the phenomenon of data remanence can make deleted data forensically recoverable.\n\nIn order to be sure that a deleted file is really deleted, it is necessary to overwrite the data sectors of that file. This process is not simply “erasing” or “formatting” the drives; this is not sufficient, as there are numerous tools available to recover “lost” data on disk drives.\n\n Clearing\n\nClearing is the removal of sensitive data from storage devices in such a way that there is assurance, proportional to the sensitivity of the data, that the data may not be reconstructed using normal system capabilities, i.e., through the keyboard. (This may include use of data recovery utilities and advanced diagnostic routines.)\n\nClearing can be used when the secured physical environment (where the media was used) is maintained. In other words, the media is reused within the same computer and environment previously used.\n\nIn an operational computer, clearing can usually be accomplished by an overwrite of unassigned system storage space, provided the system can be trusted to provide separation of the storage space and unauthorized users. For example, a single overwrite of a file or all system storage, if the circumstance warrants such an action, is adequate to ensure that previous information cannot be reconstructed through a keyboard attack, provided the system can be trusted to provide separation of system resources and unauthorized users. Software used for clearing should be under strict configuration controls.\n\nSimply removing pointers to a file, which is all that occurs when a file is deleted in most operating systems, will not generally render the previous information unrecoverable through normal system capabilities. Likewise, reformatting, repartitioning, reghosting or reimaging a system is not guaranteed to write to every area of the disc, even though it will cause the disc to appear as empty to most programs.\n\n Purging\n\nPurging is the removal of sensitive data from a system or storage device in such a way that there is assurance, proportional to the sensitivity of the data, that the data may not be reconstructed through open-ended laboratory techniques. A computer must be disconnected from any external network before a purge. Purging must be used when the secured physical environment (where the media was used) will not be maintained. In other words, media scheduled to be released from a secure facility to a non-secure facility or environment should be purged.\n\nThe United States Department of Defense (DoD) has approved both overwriting and degaussing for purging data, although the effectiveness of overwriting cannot be guaranteed without examining each specific situation. DoD documents like [NISPOM] often refer to purging as "sanitization".[1]\n\nSoftware for purging\n\nTo purge the AIS storage media, the DoD requires overwriting multiple times in a prescribed pattern. The number of times an overwrite must be accomplished depends on the storage media, sometimes on its sensitivity, and sometimes on differing DoD component requirements. Software developers must design the software such that the software continues to write to all addressable locations on the media, in spite of intermediate errors. All such errors in usable sectors should be reported with a listing of current content. U
212346
Opposite of dispose would be keep.\n\nOpposite of disposable would be permanant.
794859
Define "completely deleted"....\n\nIf you simply delete a file, then the area of hard disk that it previously occupied is marked as unoccupied. The data is technically still there.\nIf you _shred_ a file, then the disk space is similarly marked as unused, but first it is overwritten with random nonsense several times, to obliterate any previous data or any signature of the previous data. Generally speaking people only do this when they have particular reason to - most users need not shred anything unless they're totally paranoid.\n\nRawlyn.
780690
Use a disk wiping software such as wipedrive.  It puts data on every single space on a hard drive over several times to ensure private data is overwritten.  Formatting does not do much except for giving you a false sense of security.  Your data can still be read.
707434
reformatting it will "erase" everything on it, however it will not "destroy" the information on there.  IE, it could in theory still be retrieved by a skilled person with the right tools.  There are 'scrubber' software packages available that overwrite data with a bunch of trash data, then erase and reformat the drive.  This is still not perfect, but its a lot safer if you have something like social sec numbers, credit card numbers, etc and you are about to donate your computer to the local prison for prisoners to use:P
133787
impossible\n\nb'coz by deleting the deleated folder all the data is destroyed by the server
725025
There are programs that will do this, but no program guarantees that all data will be rescued.  For more serious stuff there are companies that will seriously rescue a hard drive.  We're talking if you backed over the laptop with an SUV.  They charge by the hour so your data better be worth it.\n\nI too have lost a lot of data, but most of the stuff can be re-found on the net, and some of the documents I made were so small in size that I was able to retype them.  As far as rescuing porn, I've lost that too, but there's so much out there.  Besides, when was the last time you looked at all those files anyway, aside from a few favorites?
1186388
yes\nundelete\ndata recovery and etc...\nbut GET DATA BACK is the best.\n\nYou can download it from:\nhttp://www.download.com/\nand crack it from:\nhttp://www.seriall.com/
842087
Let's say that you want to delete ALL of the files in your MY DOCUMENTS folder.    Right click on MY DOCUMENTS and pick EXPLORE.   Click on any file on the RIGHT SIDE and use CONTROL and A (to select all).   Then RIGHT CLICK on the highlighted files and pick DELETE.    All of those files would delete.   Then empty your recycle bin. \n\nBut for programs, open the Control Panel and use the ADD/REMOVE section to uninstall each one.   So at this point, those programs would be safely removed. \n\nIf you are GIVING this computer to someone else, but want it functional, use the DISK CLEANUP program that is in the System Tools of the Accessories section.  Also, take the time to test the disk.   Open My Computer, then Right Click on the C drive and pick PROPERTIES.  Then pick the Tools section.  Click on the CHECK NOW button, check both tests then let the test run after you REBOOT.   \n\nAfter testing the disk, run DEFRAG.  Find this also in the System Tools section.    When you DEFRAG, this will move many files around and connect them together.  During this process, remnants of your old files, even though deleted previously, will be scrambled pretty well.   This will also optimize the system and really make it "as good as it can".\n\nGood luck and Happy Computing!
1055132
you dont have to keep the files and other records.. data retrieval is also easy.. once the data is entered you will get so many information and reports at your fingertips.. \nalso manipulation of data is also easy..
416825
Scratch the surface of the CD with a sharp object.  Scuffing it on concrete is also very effective.  There are also shredders for CDs.  Don't use an ordinary paper shredder though!\n\nBTW, formatting a floppy wasn't a good way to delete data.  Until the floppy was overwritten, the data was still there.
81952
a total delete, meaning no one could ever recover the past data is tough.. \nBut to just reload an operating system is easy..  Requires the original CD's or a new Operating system CD like XP.\nwhen it ask's where the data is to be saved, his D for delete and L for being sure.. then enter on the new empty drive.\nEnjoy.
987745
When ever possible use recycled paper. \n\nRegarding the paperless office, I was just having a conversation earlier today about the very same subject. Electronic data is very efficient, however, what if the system crashes and no means to retrieve your backup data, if you kept a paper backup then you can resort to the paper information if possible. (old school)
667089
it delets the directory information, the files are still on there untill they are overwritten, but are not easliy accesible, but you have no reference to them, they are virtualy erased, unless someone who knows how to retrieve the data gets a hold of it. For the avarage user though, it effectively removes the data from being accesed
682691
If you really want it bad, and the Deleted Items bin has been emptied, try this:\n\nhttp://www.stompsoft.com/recoverlostdata2.html
475553
There is nothing like removal/deletion of data from hard disk,it's always overwriting.For example if u delete a particular file the OS simply deletes the file entry in file allocation table,in other words the memory locations previously occupied by the data in the file are free and can now be occupied[overwritten] by another file.So in case u have just deleted the file or did not install or create any new files after deletion, u have a good chance of recovering the old one.There are lot of  utilities ,good thing is that some tools are free like pc inspector file recovery  \nu can download it here\nhttp://www.pcinspector.de/file_recovery/uk/welcome.htm
938965
WipeDrive\nCompletely eliminate\nhard drive data\nhttp://www.whitecanyon.com/wipe-your-hard-drive-help.php\nDESTROYING COMPUTER DATA\nhttp://www.howtowipeyourdrive.com/