That's weird.. It should be on your OS drive, which in this case would be your SDD. I'm still guessing you're running windows 7...?
1. Post a screenshot of your disk defragmenter window..
2. Hit the start button and type "disk" in the search bar.. and click on "create and format hard disk partitions" and post a screenshot of that too. Should look something like this:
With your system reserve and boot/OS drive being "Disk 0" If it's not then you probably installed the OS on your SSD from a SATA slot on your MB that wasn't slot #1.