So I decided to reinstall windows so I put all my important videos and pictures that i've had for awhile and don't want to lose so I put them on there so I could reinstall windows since I got a new graphics card and wanted everything to be smooth and fast. Big mistake, so once I put all my files on the second hdd I unplugged it as some people said to do when reinstalling windows just in case it were to clear the files on that drive. So everything works out perfectly. New windows and its clean and fast. Now I go to turn off my computer to plug in the 2nd hdd and I do so close the case and turn on my computer. Don't see it under this pc and neither in Disk Management. The disk spins i'm pretty sure as it vibrates and all I did was unplug it. One thing I didn't do was when I turned off my pc I didnt turn the power supply switch off. Could this have ruined my harddrive when I unplugged the sata and power? Please help I have all my data on there and need it. Thanks alot