are you sure your windows installer is pointed to the ssd and your to the main hard drive?? if the hard drive has an os on it. power down your rig and then unplug the sata data cable to the hard drive so you dont wipe your old data off of it. if the vendor put a partion on the ssd then go under advance tools on windows installer and delete the partion on the ssd and then reboot and rerun the installer. on the rerun windows will make two partion for you.