In order to erase a USB drive, some users may just delete files or format it. However, neither simple deletion nor formatting can completely erase files, because many data recovery programs can easily and quickly recover deleted or formatted files. Therefore, computer users need to be careful when discarding or selling USB drives, as a large amount of data involving personal privacy and even company secrets can be found on many recycled used flash drives.

HDD Low Level Format Tool (AKA: HDD LLF Low Level Format Tool, short for HDD LLFT) is an tiny HDD low-level formatting tool for Windows. Lightweight but powerful and helpful, with very important and significative purposes.