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Software to wipe Harddisc before selling?

jamhops Avatar
8y, 4w agoPosted 8 years, 4 weeks ago
Plan on selling a hard disc (or maybe 2) and wondered what software is good to wipe it spic and span? (would like to to be free or free *trial*? Also any software to test it well for bad sectors etc.?

(not sure ti makes a difference but SATA drives)

thanks in advance
jamhops Avatar
8y, 4w agoPosted 8 years, 4 weeks ago
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Comments/page:
#1
big strong magnet or PGP
#2
I have only done this with my copy of Windows. Put the disk in, follow options to reformatt etc.
#3
Windows format does not wipe the drive it only modifies a very very very small percentage of the content leaving the rest entirely recoverable, the lengthy format is really only doing a bad sector test (read-only).

http://www.dban.org/download
#4
anymore as PGP isnt free Windows doesnt do it all and i dont want to risk damaging it or not ensuring it is 100% done with a battery (and dont have a strong battery)
#5
#6
abomination
Windows format does not wipe the drive it only modifies a very very very small percentage of the content leaving the rest entirely recoverable, the lengthy format is really only doing a bad sector test (read-only).

http://www.dban.org/download


this worried me on the about 'DBAN will automatically and completely delete the contents of any hard disk that it can detect' does it mean it will wipe my new hdd as well?
#7
Try this, http://www.killdisk.com/ download the free version.
#8
hypnoticstate


thanks will look into that one :thumbsup:
#9
I never knew that about a Windows reformatt! I don't know how to get a drive back to what it was before the reformatt, so I don't think everyone would know how to do this (or want to if they were buying a second hand drive) But in this fearful cynical world :w00t: probably best to use other methods as mentioned above...I remember seeing a programme about all this, and the presenter said that the safest way to prevent data being recovered from a HD was to smash the HD to pieces and throw it in a skip! :w00t:
#10
rehydrated
I never knew that about a Windows reformatt! I don't know how to get a drive back to what it was before the reformatt, so I don't think everyone would know how to do this (or want to if they were buying a second hand drive) But in this fearful cynical world :w00t: probably best to use other methods as mentioned above...I remember seeing a programme about all this, and the presenter said that the safest way to prevent data being recovered from a HD was to smash the HD to pieces and throw it in a skip! :w00t:


its a 200 or 300 gig sata so bit of a waste and a loss :p
banned#11
Here's an easy one to use:
http://www.dban.org/

Hope it helps :)
#12
rehydrated
I never knew that about a Windows reformatt! I don't know how to get a drive back to what it was before the reformatt, so I don't think everyone would know how to do this (or want to if they were buying a second hand drive) But in this fearful cynical world :w00t: probably best to use other methods as mentioned above...I remember seeing a programme about all this, and the presenter said that the safest way to prevent data being recovered from a HD was to smash the HD to pieces and throw it in a skip! :w00t:


That is correct in that completely destroying the hard drive is the preemininent method of preventing recovery of files. When a hard drive is writing data the write head does not write to the exact same place as previous writes. Subsequently, an attempt to erase will cause the overwrite of some but not all of the data as the write head will not be specifically at the same point as previous writes to a certain sector. This leaves traces of magnetic information from previous writes which can be recovered (albeit this is quite a difficult process). Needless to say, the more times the drive is overwritten the less legacy information written in the past will be traceable but there isn't a piece of software that guarantess legacy data to be untraceable. This is why government establishments physically destroy hard drives when they become faulty or are upgraded (although some government workers tend to leave them lying around on trains!)

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