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Old June 2, 2013, 08:35 AM
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Hi Guys, I will be selling few drives. What is your opinion about CCleaner's utility Wipe Drive or Wipe Free Disk space (for clearing up personal drives).
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Old September 10, 2016, 08:49 AM
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I tried DBAN the other day before selling a hard drive and it did not work for me. I forgot what the error message was exactly, but I ended up just formatting it.

I remember trying DBAN before years ago and it also had the same issue. Are the other ones more user friendly?
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Old September 10, 2016, 10:59 AM
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IF you just formatted the drive the data is still there and can be found again.

All you should need to do is open a command promt (with admin privileges) in windows and type in:
cipher /w:X
where 'X' is the drive letter of the NON-OS drive you want to securely erase.... just make sure the drive is empty before doing this as it will overwrite all free space with garbage and then delete the mega-file.

For more info on windows cipher:
https://technet.microsoft.com/en-ca/.../bb490878.aspx
or
Cipher command line tool in Windows 10 / 8 / 7
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Old September 10, 2016, 11:24 AM
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Quote:
Originally Posted by AkG View Post
IF you just formatted the drive the data is still there and can be found again.

All you should need to do is open a command promt (with admin privileges) in windows and type in:
cipher /w:X
where 'X' is the drive letter of the NON-OS drive you want to securely erase.... just make sure the drive is empty before doing this as it will overwrite all free space with garbage and then delete the mega-file.

For more info on windows cipher:
https://technet.microsoft.com/en-ca/.../bb490878.aspx
or
Cipher command line tool in Windows 10 / 8 / 7
Hrmmmm.... never heard of that before. If I'm reading this right it only affects the "unused" portion of the drive so you'd need to do a format and/or partition prior to using this command? (or at the very least delete everything on the drive?)
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Old September 10, 2016, 11:31 AM
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Yes. It wont touch any files on it that are linked in the internal table as still good/being used/etc.
Thats why you delete all the files first... or do what I do and simply quick format it then run the cmd line program.
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Old September 10, 2016, 11:41 AM
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I don't have a spare mechanical drive kicking around otherwise I'd test it myself.... how long does the process typically take? (Proper DoD wipe is many hours if not days depending on the drive.... ;) ).
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Old September 10, 2016, 12:04 PM
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Its not a proper DoD wipe its a (IIRC) single pass... which is more than enough for avg joes (if you have peeps who have access to a clean room then yeah its not enough..use a hammer... but for most its more than enough as the '35 passes needed' is an urban legend outside of NSA level paranoia - even Gutmann himself stated that in the paper that started the urban legend that 1 or 2 passes is enough for most and that was back in the 90s when bit size on a platter was HUGE compared to today! ).

It depends on the drive but its not exactly 'fast'. Not 5 pass slow...but not fast. Set it up, make sure its working and go to bed. In the morning it will be done.

Edit: Another tool that also works and 'may' be more secure is SDelete.
https://technet.microsoft.com/en-us/.../dd776514.aspx
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Last edited by AkG; September 10, 2016 at 12:14 PM.
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