OK... I finally found the right ISO for my clean install of Windows 8 for my SSD. After finally getting Windows to properly activate on the SSD and loading up all the ASUS drivers, I went to reinstall the old HDD in the second bay of my laptop but it won't work, isn't in disc management and I'm unable to access the BIOS via ESC while both drives are plugged in together. The new SSD is a 256GB 840 Pro. I have the OS partitioned as C drive and 100GB size. The remaining space on the SSD is labeled D drive. The original HDD was also C drive, don't know if that's causing a conflict or not. I don't know what else I can do to get both drives working together. Also, my laptop is a Asus G750JW. Figured it out... I had run Samsung Magician software to optimize the SSD for performance but it took away access to the slow drive. I re-optimized for capacity and now the drive is back. So I'm good.