I have an alienware 18 and the dolts put the 1tb 5400rpm HDD for boot and Msata SSD 256gb for storage. I want to replace the boot HDD with an SSD obviously, but how do I go about doing that with putting a new OS on and everything? I assume I buy an SSD and an OS, windows 7, and then place the SSd inside and then insert the OS disc, and walla? Or no