I recently purchased a new Samsung 850 EVO 500GB SSD for my Asus laptop running windows 10. It is one of the newer, large ones with two hard drive slots. I put it into the primary slot, and moved the old hard drive to the secondary slot, and turned it on. Everything seemed fine, and it booted from my old drive no problem. I used the cd that came with the SSD to install the Samsung data migration software and cloned the old drive to the SSD. It finished, gave me a completion message and told me to restart my computer to install the new drive. I restarted it, and the problems began. It would get to the lock screen before starting to flash over and over. While it was doing this the only thing I could do was move the mouse around the screen. After restarting again, the problem persisted, and I looked online for solutions. The first step on all of the solutions was to boot from the old drive, so I changed the boot order. I could no longer start from my old drive. I thought that the SSD might somehow be preventing me from booting from my old drive, so I took the SSD out. I restarted the computer, and it said that the boot folder was missing and I needed to repair my disk. That seemed strange, since I had not removed or changed any files on the old drive. So I tried taking it out, and just putting in the SSD. When I did that, it would seem to be loading fine, but get stuck on the black screen with the spinning dots, and would just do that forever. I put the old drive back in with the SSD and tried again. I got the same flashing glitch as before. So there you have it, three different problems, 0 successful solutions. Can any of you suggest anything?