▸Your Samsung SSD such as 850 EVO does not have the newest firmware. ▸Samsung Magician is not the latest version that released. In a nutshell, the following reasons could be one of the elements. Generally speaking, there are many factors that may lead to Samsung secure erase failed on SSD. Well, why would this happen? Why Samsung Secure Erase not supported on your SSD? Everything goes smoothly at the beginning but the aforementioned prompt comes out and stops the erase at the end. Some users reported that Samsung Magician emerges selected SSD not supported error when they try to secure erase their 840/850 EVO SSD. That’s where the error pops up: Secure Erase is not supported by this SSD! What should I do to smoothly erase my Samsung SSD?” After a while, it finds my drive and I hit “Y” again to begin erasing. At the screen, I hit escape to get to the command line, and hit “Y” to scan. Then, shut down my computer and boot from that USB drive. I followed the guide of Samsung Magician to create a bootable USB drive first. “Want to secure erase my Samsung 850 EVO SSD. Secure Erase not supported on selected SSD