One solution would be to use Paragon Migrate OS to SSD Software - you will have to Google it as PC Advisor thinks the link is Spam
If you want to do it the hard way you will need to create a new partition on your existing drive, migrate all the files you want to keep (docs, music, pics etc.) to the new partition then use cloning software to clone the smaller partition with your OS and Programs on it to the SSD via a USB caddy. Put the new SSD in the PC and adjust the BIOS so that it now boots from the SSD. If you want you can then later delete the partition on the old drive that contained the OS and the programs.
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