A single-pass zero-fill on an HDD makes data unrecoverable by software. Only a hardware lab with platter reading might retrieve fragments. For SSDs, Secure Erase is equally effective. Do not believe myths about needing 35 passes (Gutmann) – that was for older MFM drives with different encoding.
Ultimate Guide to HDD Low-Level Format Tool: Full 2026 Update hdd llf low level format tool full updated
A single-pass zero-fill on an HDD makes data unrecoverable by software. Only a hardware lab with platter reading might retrieve fragments. For SSDs, Secure Erase is equally effective. Do not believe myths about needing 35 passes (Gutmann) – that was for older MFM drives with different encoding.
Ultimate Guide to HDD Low-Level Format Tool: Full 2026 Update