Learn how to wipe a hard drive in Windows 7 safely using built-in tools, Command Prompt, or third-party software.
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 ...
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.