My Dell E7250 has a 512GB M.SATA SSD. On Friday I was using the machine when it suddenly and totally locked up with no error message. I power cycled and the BIOS says no HDD installed. Put the SSD in another machine, same result. Put he SSD in a USB carrier, again, not showing up at all. That's it, total failure with no warning at all. New SSD is now installed and I had CrashPlan Pro so I didn't loose any data, but boy, getting everything reinstalled has taken 2 days. The worst part is re-joining the corporate domain remotely, that's something what very few of our IT support people can do successfully. MSDirect Access still requires various hoops to be jumped through, even in Windows 10.

Just needed to rant. I probably have 10 machines with SSD's and I've never had one fail before. I somewhat suspect that heat may have something to do with the failure, the Dell Latitude E7250 seems to run hot, especially when docked.