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Windows 7: Flash drives dangerously hard to purge of sensitive data

22 Feb 2011   #21
seth500

Windows 7 Ultimate x64
 
 

I'm not worried about it.....

http://www.overclockers.com/forums/s...d.php?t=649711


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22 Feb 2011   #22
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Actually.....is it possible to run memtest86+ on a SSD? Wouldn't that "shred" the data on the drive?
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23 Feb 2011   #23
lehnerus2000

W7 Ultimate SP1, LM18.3 MATE, W10 Home, #All 64 bit
 
 
Wear Levelling

This problem must be a result of the wear levelling process.

I chatted to my friend who designs/prototypes electronic equipment for a living (we worked together as technicians years ago).
As long as you delete the original files and then write a single file, which writes to every memory location, you should be safe.

I can't see how it is possible for a solid state memory to (simultaneously) remember two bits of data in a location that only holds one bit.
There is no head wobble (or magnetic spread) in Flash memory.
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01 Mar 2011   #24
pacinitaly

windows 7 professional & ultimate 64bit laptops
 
 

not even a heavy duty magnet to erase data?
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02 Mar 2011   #25
Klaw117

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by pacinitaly View Post
not even a heavy duty magnet to erase data?
I don't think that works on SSDs. For HDDs, it will probably work, although a lot of modern drives are designed to sustain some heavy abuse before failing. I still think your safest bet is to grab a hammer and go all out on your drive.
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02 Mar 2011   #26
seekermeister

W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE
 
 

Quote   Quote: Originally Posted by Klaw117 View Post
Quote   Quote: Originally Posted by pacinitaly View Post
not even a heavy duty magnet to erase data?
I don't think that works on SSDs. For HDDs, it will probably work, although a lot of modern drives are designed to sustain some heavy abuse before failing. I still think your safest bet is to grab a hammer and go all out on your drive.
The hammer may provide a means of venting, but there are a lot of ways to use old hard drives, without totally destroying them. You can make bookends, chimes, etc. out of them, which at least gives them some residual value.
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02 Mar 2011   #27
Windows 911

Windows 8 Pro
 
 

I'm sure a sledgehammer or a strong chemical would do the job I wonder, since that info is out, that companies might be a little apprehensive of switching to SSD's... Who knows, maybe hard drives are here to stay for a while, at least until they figure out an efficient way of wiping SSD's.
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03 Mar 2011   #28
bobtran

Windows 7 Ultimate x64
 
 

Simply run a command line format (not the GUI format) on the flash-drive, run it multiple times if you are paranoid.

"FORMAT volume [U:label] [/P: passes]"
where passes = Zero every sector on the volume passes times.

Do NOT use the /Q flag as quick format only eliminates the pointers and not the data.
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03 Mar 2011   #29
pacinitaly

windows 7 professional & ultimate 64bit laptops
 
 

Quote   Quote: Originally Posted by bobtran View Post
Simply run a command line format (not the GUI format) on the flash-drive, run it multiple times if you are paranoid.

"FORMAT volume [U:label] [/P: passes]"
where passes = Zero every sector on the volume passes times.

Do NOT use the /Q flag as quick format only eliminates the pointers and not the data.


very good!
My System SpecsSystem Spec
03 Mar 2011   #30
wilywombat

win7
 
 

Try using truecrypt (free) and selecting AES + Twofish encryption algorithm and whirlpool hash algorithm with a long password for the entire drive. When you dont need it anymore re-encrypt the whole drive as above with a different long password.
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 Flash drives dangerously hard to purge of sensitive data




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