HDD Regenerator 171 Portable: Portable HDD recovery utility that repairs magnetic surface defects and restores drive readability.

In practice, this is debated. Most engineers view it as a sophisticated bad-sector remapping tool with aggressive retries and write tests, not true magnetic restoration.

The program works at the physical level, meaning it is independent of the operating system or file system (FAT, NTFS, etc.). Its primary purpose is to address "magnetic errors" on the disk surface.