Removing Files from Hard Drive

Category: Hard Drives

"My computer is 5 years old and it freezes up and shuts down on me at times. So I am considering buying a new one. How do I get rid of any files on it before I donate it to a school?"

Since you asked this question, you probably already understand the fact that simply deleting files on your hard drive doesn't actually remove them permanently...


When you tell your computer to delete a file, the operating system just removes a pointer from the file system, so the file can no longer be found on the disk. That physical space becomes available for other files, but it may not ever be over-written.

There are ways to recover files (or portions of them) from a disk once they have been deleted. So if you are considering donating your used computer to charity, you should take some steps to make sure that any personal information is truly expunged from the disk. Here's what I recommend:

  • First, reformat the hard drive. Under Windows, you can format by going to My Computer, right-click the icon for the hard drive, and then select Format. When the format completes, you will have erased all files from the drive.

  • Since your computer now has an empty hard drive, you'll need to re-install the operating system with the original CDROMs. It's still possible, but pretty unlikely, that some shreds of your old files might still be visible. But finding them requires some pretty advanced sleuthing tools and a lot of determination.

    If that solution doesn't satisfy you, there are two other options you can try:

  • Hard Disk cleaning tools such as Disk Wipe, Drive Scrubber or R-Wipe & Clean claim to remove every last shred of your personal files. You can also search the Web for "disk wipe" or "file shredder" to find similar software options.

  • Remove the hard drive and hit it with a sledge hammer. I've done this and it's actually quite satisfying. This pretty much guarantees nobody is going to find your old love letters. Since hard drives are pretty cheap now, buy an 80GB drive for under $50 and donate it along with the computer. Everyone wins!


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    Posted by Bob Rankin on July 11, 2005 03:42 PM


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    Related Keywords: Hard Drives   remove files   disk wipe   disk clean   format   re-format   file shredder.  

    Most recent comments on "Removing Files from Hard Drive"

    Posted by:
    Chris Buechler
    19 Aug 2005

    The Ultimate Boot CD is a freely available utility CD that includes four different tools for wiping drives.

    http://ultimatebootcd.com/

    If your data isn't worth a huge amount of money, using any of those utilities will be sufficient to ensure your files are unrecoverable. Facilities will millions of dollars of special equipment could likely still read the data though, or at least portions of it. If your data is worth *that* much, do as the Pentagon reportedly does - shred the drive into a powder, then burn the powder in an incinerator. :)

    Blowing it into pieces with a sufficiently large caliber gun can be a good time too. :)


    Posted by:
    steve
    24 Mar 2006

    hi bob when i download software like norton and i do not want it any more when i del it ,is it still on my hard drive i got nod32 now when i scan it showing norton still there wot can i do plz help

    EDITOR'S NOTE: Wow... did you lose your Shift and "." keys? Anyway, my advice is do nothing and ignore it. I tried to remove the remnants of Norton from a machine once (after uninstalling) and it fouled it up forever. Had to reinstall the operating system. Norton gets its hooks in deep, won't let go, and that's why I don't recommend it.


    Posted by:
    Dr. C. Alvarez
    04 Apr 2007

    Hello Mr. Bob Rankin: I'm a complete novice, pertaining upgrading my system. I have a huge dilemma. I need to clean my Hard Drive. I'm running completely out of space. I need your expertise advise. Help...help....

    EDITOR'S NOTE: First go to My Computer, rightclick on the hard drive icon, select Properties, then Disk Cleanup. Next, use Control Panel Add/Remove Programs to get rid of programs you don't need.


    Posted by:
    Dan
    14 Jun 2007

    Bob.Cannot system restore.When I try to boot in safe mode I get stop:c0000218 (registry file failure) The registry cannot load the hive (file):\systemRoot\system32\config\SECURITY or its log or alternate. It is corrupt,absent or not writable. Using Windows XP with SP2.None of the KB articles I looked at seemto help. Any ideas as to how to rectify this problem.....it just at a stroke negates System Restore. Mant Thanks. Dan

    EDITOR'S NOTE: This may help: http://support.microsoft.com/kb/307545


    Posted by:
    michael
    21 Jul 2007

    I am trying to remove the contiguous files that are not being removed, how would I do that?

    EDITOR'S NOTE: Contiguous files are GOOD. Fragmented ones are bad. What are you trying to accomplish?


    Posted by:
    Sarah
    11 Sep 2007

    I need to clear files from my hard drive without clearing the programs. Thanks.

    EDITOR'S NOTE: Have you tried Windows Explorer (Start / All Programs / Accessories) to find and delete the files?


    Posted by:
    sunil
    19 Feb 2008

    my hard partition affected by virus which damages my two drives out of 4 drives now I want to recover the data from them. Only mbr is damaged I tryed to recover it by using fixmbr but it showing file allocation talbe wrong. pls help me out.

    EDITOR'S NOTE: I always recommend TESTDISK in these situations. It can analyze the disk and recreate both the partition table and the boot record. See http://www.cgsecurity.org/wiki/TestDisk


    Posted by:
    Sarah
    05 Jun 2008

    hiya, please can you help me. i sent some pictures of myself to my computer. i deleted the files from my computer but how could i delete them completely so they can not be retrieved from my hardrive?

    EDITOR'S NOTE: Check out the Hard Disk cleaning tools mentioned in the article...


    Posted by:
    pound
    10 Aug 2008

    I have a pc that the power supply went out on it. I got a new pc and wanted to remove the Hard Drive from the old and retrieve information from it, wifes cooking recipes, some addresses, photo's is there any way to do this?

    EDITOR'S NOTE: Sure... the easiest way is to remove the old drive, and attach it to the new computer with an external USB drive kit. You could also install it in an empty drive bay inside the new computer, but then you have to fiddle more with the innards of the computer. You can find the kits at Radio Shack and other places, and they are very easy to use.


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