I'm going to migrate my old PC into a new small form factor case. Currently it has a 1TB HDD which is the boot drive and a 500gb HDD. When I transfer it to my new case and add the SSD I'm going to install windows to the SSD. Do I have to worry about the C: directory transferring to the SSD or will it do this itself when I install windows? I don't want to remove the data from the old boot drive other than my current windows installation.