null_ Posted July 29, 2009 Share Posted July 29, 2009 Removed Link to comment https://www.neowin.net/forum/topic/803576-how-to-clean-your-hard-disk-using-diskpartexe/ Share on other sites More sharing options...
Nayos Posted July 29, 2009 Share Posted July 29, 2009 Very useful. But, one question. You've said: Note: The DiskPart ?clean? command should only be used in instances where you do not require that the data on the hard disk drive be securely erased Why is writing 0s to the drive not "securely" erasing the data? Surely, if it was all 0s then no one could get the data back. Which would have the same result as scrambling the bits (i.e.; the data is unrecoverable). Am I missing something? Link to comment https://www.neowin.net/forum/topic/803576-how-to-clean-your-hard-disk-using-diskpartexe/#findComment-591347632 Share on other sites More sharing options...
null_ Posted July 29, 2009 Author Share Posted July 29, 2009 Very useful. But, one question.You've said: Why is writing 0s to the drive not "securely" erasing the data? Surely, if it was all 0s then no one could get the data back. Which would have the same result as scrambling the bits (i.e.; the data is unrecoverable). Am I missing something? Typically, scrambling the data with random bits will provide an additional level of security against data recovery. Link to comment https://www.neowin.net/forum/topic/803576-how-to-clean-your-hard-disk-using-diskpartexe/#findComment-591347638 Share on other sites More sharing options...
+Xinok Subscriber² Posted July 29, 2009 Subscriber² Share Posted July 29, 2009 Surely, if it was all 0s then no one could get the data back. Which would have the same result as scrambling the bits (i.e.; the data is unrecoverable).Am I missing something? Theoretically, even though the data has been overwritten, a person with special equipment could still recover the data. So a few algorithms were invented, a set of multi-pass patterns designed to eliminate the data permanately so nothing can recover it. The reason I say theoretically is because I haven't found any proof that this is actually possible. In fact, I found lots of evidence to suggest that it's not technically feasible or at least hugely impractical. Some of the top results on Google suggest that it's impossible, and that a single pass overwriting data is sufficient. http://www.google.com/search?q=is%20it%20p...ta%3F&hl=en It's all paranoia really, but I think most people simply don't know all the facts. Link to comment https://www.neowin.net/forum/topic/803576-how-to-clean-your-hard-disk-using-diskpartexe/#findComment-591347782 Share on other sites More sharing options...
-KJ Posted July 29, 2009 Share Posted July 29, 2009 Thanks for the guide! Theoretically, even though the data has been overwritten, a person with special equipment could still recover the data. So a few algorithms were invented, a set of multi-pass patterns designed to eliminate the data permanately so nothing can recover it.The reason I say theoretically is because I haven't found any proof that this is actually possible. In fact, I found lots of evidence to suggest that it's not technically feasible or at least hugely impractical. Some of the top results on Google suggest that it's impossible, and that a single pass overwriting data is sufficient. is%20it%20possible%20to%20recover%20overwritten%20data%3F&hl=en It's all paranoia really, but I think most people simply don't know all the facts. I've always wondered this myself. Thanks :) Link to comment https://www.neowin.net/forum/topic/803576-how-to-clean-your-hard-disk-using-diskpartexe/#findComment-591347794 Share on other sites More sharing options...
Nayos Posted July 29, 2009 Share Posted July 29, 2009 Theoretically, even though the data has been overwritten, a person with special equipment could still recover the data. So a few algorithms were invented, a set of multi-pass patterns designed to eliminate the data permanately so nothing can recover it.The reason I say theoretically is because I haven't found any proof that this is actually possible. In fact, I found lots of evidence to suggest that it's not technically feasible or at least hugely impractical. Some of the top results on Google suggest that it's impossible, and that a single pass overwriting data is sufficient. is%20it%20possible%20to%20recover%20overwritten%20data%3F&hl=en It's all paranoia really, but I think most people simply don't know all the facts. Cheers for the answer :) Link to comment https://www.neowin.net/forum/topic/803576-how-to-clean-your-hard-disk-using-diskpartexe/#findComment-591348148 Share on other sites More sharing options...
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