I have a Samsung 840 EV0 250GB SSD that worked fine on several machines before. I left it on my shelf for a month or two now when I plug it in by USB or SATA it will not show up in disk management, or Windows explorer, but is detected by Windows setup, and by device manager.
So I ran the Western Digital Diagnostics tool. it passed the SMART (basic) test but when I tried to either do a full test or write it with 0's I get an error stating that the drive contains too many bad sectors.
One windows 7 PC does show the drive in disk management, but when I try to make it offline, or initialize it, it says that the drive is write protected.
How do I check for sure if its bad, and how can I get Windows to recognize it.
I need this so that I can replace my noisy HDD with this.