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  1. #1
    How to erase all files. For ever!

    Member Since
    Sep 01, 2009
    Location
    Cymru
    Posts
    32
    Specs:
    imac & macbook
    Hi.. I'm getting rid of my Macbook (3 months old) and getting a Macbook Pro... mainly for the firewire to record audio.

    I've heard of the 'Eraser' software to clean up the mac...

    Any alternatives that's better for mac? Is there a simpler way?

    Any help appreciated.

    Also... how do I erase the files and not the applications?

    Does Eraser delete the files only?... or everything?

    Confused

  2. #2
    How to erase all files. For ever!
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
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    26,206
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    If all you want to do is erase files and leave everything else "as is":

    Move them to the trash can - go to the Finder menu and select 'Secure empty trash'
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  3. #3
    How to erase all files. For ever!

    Member Since
    Sep 01, 2009
    Location
    Cymru
    Posts
    32
    Specs:
    imac & macbook
    Thanks for the quick reply.

    Does that function secure the files currently present in the trash?.... or does it secure the trash's history?

    What about internet history?

    I want to sell the macbook as I bought it (excluding software /application updates)

    Is there an easy way of doing this without downloading software?

    sorry if this sound simple but I'm a mac noob when it comes to things like this.

  4. #4
    How to erase all files. For ever!
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,206
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    If you're wanting to sell the machine - insert the original disk that came with the machine - restart holding down the 'C' key and reinstall
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  5. #5
    How to erase all files. For ever!

    Member Since
    Feb 25, 2009
    Posts
    2,109
    Specs:
    Late 2013 rMBP, i7, 750m gpu, OSX versions 10.9.3, 10.10
    Well, I'd do more then just reinstall - if you want to totally cover yourself, when you're in the install DVD, before you go into the install process you can access disk utility and have it do a multipass security wipe, then reinstall the OS.
    My Macs: Late 2013 rMBP w/ 750m; Mac mini G4, 1.25 GHz, 512m ram (server); Late 2011 11" MBA, 1.8GHz i7, 4Gig Ram, 256Gig SSD, HD3000; Powerbook 12" G4 1.33GHz running Debian as a server; Apple TV (1080p version)

  6. #6
    How to erase all files. For ever!

    Member Since
    Sep 01, 2009
    Location
    Cymru
    Posts
    32
    Specs:
    imac & macbook
    So the original disk has all the applications e.e. garageband, i tunes, safari etc

    If I re-install... would it erase the applications?

  7. #7
    How to erase all files. For ever!
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,206
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    You have 2 disks that came with the machine - they have everything it was shipped with.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  8. #8
    How to erase all files. For ever!

    Member Since
    Sep 12, 2009
    Location
    Upstate NY
    Posts
    15
    Specs:
    15" unibody MBP, Core Duo 2.66, NIVIDEA 9400 graphics, 4GB DDR3
    Quote Originally Posted by bobtomay View Post
    If you're wanting to sell the machine - insert the original disk that came with the machine - restart holding down the 'C' key and reinstall
    Agreed. A fresh install will completely reformat the HDD and wipe everything. The reason that programs exist to recover deleted data is that modern OS's often don't actually delete the file - they merely tag those sectors on the disk as being writeable again, so as long is nothing is put over them, the data is actually still there. Also, they use what are called "journalised" file formats, so there is additional info about the contents of a sector of the disk hiding out on other parts of the disk. A reformat will put everything back to the way you had it when you first got it.

  9. #9
    How to erase all files. For ever!

    Member Since
    Apr 09, 2009
    Location
    Ithaca NY
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    2,073
    Specs:
    13 inch alMacBook 2GHz C2D 4G DDR3, 1.25GHz G4 eMac
    Use the multi pass security swipe which will write over your disk up to 37 times I believe, which is pretty **** secure. They said that most government offices only use 7 times through when they erase disks.

  10. #10
    How to erase all files. For ever!
    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Location
    Toronto
    Posts
    19,389
    Specs:
    2012 13" MBP (2.5 i5, 8GB)
    Note though that zeroing the disk (erasing it securely) will take a really long time especially if you do it more than once. See here for more info.

    When I say long, I'm talking hours. If you do the 7-pass or more, leave it overnight.
    Important Links: Community Guidelines : Use the reputation system if you've been helped.
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  11. #11
    How to erase all files. For ever!

    Member Since
    Apr 09, 2009
    Location
    Ithaca NY
    Posts
    2,073
    Specs:
    13 inch alMacBook 2GHz C2D 4G DDR3, 1.25GHz G4 eMac
    For sure.

  12. #12
    How to erase all files. For ever!

    Member Since
    Sep 01, 2009
    Location
    Cymru
    Posts
    32
    Specs:
    imac & macbook
    For sure, for sure....

    right...

    I've done the 7 pass! And re-installed Mac OSX.. at the end of the installation it said that it had to restart.... so I clicked 'OK'....

    Now the Macbook has started with the welcome and registration programme...

    I don't wish to register myself with it again cause I want to sell it.... and I can't shut it down!

    Also... if this is the case... how do I re-install the Applications DVD....

    hmmmm

    I've got offers on it already and I really want to get rid!

    Thanks for the responses guys

  13. #13
    How to erase all files. For ever!

    Member Since
    Sep 01, 2009
    Location
    Cymru
    Posts
    32
    Specs:
    imac & macbook
    Created a new temp. account in order to re-install applications.....

    By now.... someone's bought it!

    But .... how do I set it up as bought? I want to set it up so the buyer sees the 'Apple Welcome programme' when switched on....

    ????????????

    My lack of mac terminology fails in Google!

  14. #14
    How to erase all files. For ever!
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
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    20,002
    Specs:
    iMac i5 2.7GHz, 16GB memory, OS 10.10.5
    Show user as anybody and password as 1234.

    Pass on the install discs and this info to the new user and they can then change it to whatever they like. To get the welcome screen, sell after wiping the drive and l;et them do their own install. You are including the system discs with the machine? Otherwise you should not put an OS on it.

  15. #15
    Reformat you computer.. in that way you will be able to delete all the saved files.

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