Questions tagged [zero-write]

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3k views

Zeroing the content of a hard drive without destroying the filesystem [duplicate]

I've copied a lot of photos on an external hard drive from an old computer that was used by an old person and was probably infected by malwares. I've put the photos on another hard drive. Now my ...
4
votes
1answer
231 views

Is there a faster way to verify that a drive has been fully zeroed?

In the coming months, I'm going to need to zero out a lot of disks. After wiping each drive, I need a quick way of making sure that the drive has been completely filled with zeroes. I could open each ...
1
vote
2answers
234 views

Why does dd give me an error at the end of zero-writing a disk?

I'm running Cygwin on Windows 7. I was using the following dd command to securely erase a 1TB mechanical disk: dd if=/dev/zero of=/dev/sde bs=4M status=progress About 2 and a half hours into the ...
52
votes
7answers
16k views

Is an HDD overwritten with zeroes faster?

I had a PC with two OSs installed, which hard drive I erased using Disks from UbuntuUSB. I chose quick erase. As I understand, it deleted partition table, but all files' ones and zeroes are still on ...