Hi,

I found a website that say that the low level format are not erase 100% of the hard drive, is it the same for HDD LLF?
https://www.quora.com/Is-it-possible-to-recover-data-after-a-low-level-formatting-with-Rufus-I-used-3-different-recovery-data-tools-but-I-got-very-little-data-back-and-all-the-filing-was-lost-Is-the-filing-possible-to-also-be-recovered-e

Does HDD LLF is safe to use before selling a computer use by a company?

There is a better tools without physically destroying hard drive?

Just zero fill the drive. There are numerous tools which can do that.

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A backup a day keeps DR away.

Ok but this is a good way to erase data and reuse hard drive or data can be restaured with basic software?
There is a better software?

If you fill the drive with zeros it cannot be recovered.