The Windows tool Diskpart overwrites all data on the hard drive with a zero, which is considered a secure deletion method. This applies at least to classic hard drives, i.e. HDDs with magnetic discs.

When you delete a file from your computer, it’s not really gone. In fact, it can often be recovered with the right tools. That’s where Sdelete comes in. Sdelete is short for Secure Delete and it ...

Secure Erase and HP Disk Sanitizer are tools used to remove data from a hard drive or solid-state drive permanently. The deleted information cannot be recovered. Use Secure Erase or HP Disk Sanitizer ...