I'm using a dell inspiron 1440 laptop, recently replaced my internal hard drive with a new solid state drive. It was working fine until today when I tried to boot my laptop up, and it gave me a BSOD before reaching the "Starting Windows" screen. Subsequent attempts at selecting the Startup repair and start windows normally options only gave me "failed to repair", and the windows logo getting stuck respectively. Safe mode cannot be started. However, when I tried to launch startup repair from my win 7 installation disk, I found that my HDD is not detected by my laptop. Subsequently, my laptop has also told me to reseat my hard drive. I reseated it a few times, but it did not solve the problem. Diagnostics ran on my laptop did not identify any problems. Any help will be greatly appreciated.