Have this morning my laptop turned on at school after Windows 8.1 was frozen for 3 to 5 minutes, I had to go from unclean. After that, the laptop, the SSD has no longer recognized, as I was at home, I then started again a live Linux, still nothing to watch from the hard disk. Had even under Win 8.1, the SanDisk software. Never really had problems, was quick in reading and writing, but today it is simply broke. I find real sh *, stupid, have currently exams and exam. Need to sit down now with the support apart ... do not think I here this order to me in the near future again.