SSD Crucial MX100

I have a Vostro 1500 laptop and upgraded the hard drive with crucial mx100 windows 7 with all windows update. I keep getting error blue screen. I couldnt get the frameware for the SSD. 

To this point, I put back the old hard disk and it works fine.

I tried to put back the SSD, but the window could not recognize it.Before I install the SSD, i changed in the BIOS from ATA to AHCI. 

Thanks