Samsung HUTIL is a bootable hard drive testing utility that can perform a surface scan of Samsung hard drives.
Used Hard Drive How to Check Health
It is a little bit more difficult to use than other programs because it does not have a normal graphical user interface. But because it is a bootable program, it also means that it will work regardless of which operating system is installed.
There are a few major limitations, but the program is great if you have a Samsung drive.
Although Samsung HUTIL can only scan Samsung drives, it can also load and find drives from manufacturers other than Samsung. However, it cannot perform diagnostics on them.