Best is to uninstall all programs you don't need, clean up your files so that they're neatly filed in each User folder then drag them to another HD or external, delete each User folder's content on the OS , use CCleaner
to clean up temp and other unneeded files.
Then capture an image using Windows 7 backup imaging: Backup Complete Computer - Create an Image Backup,
or the premium Acronis app which comes free with any WD or Seagate HD in the mix, reapply the image to the SSD with the source HD unplugged.
After SSD is up and running, plug back in the HD and link the User folders you backed up to the related Windows 7 Library - Include a Folder
which is easiest; or create a data partition on the HD, copy in the User folders you backed up, and link them from Windows 7 this way: User Folders - Change Default Location
Audit your Windows 7 now using Belarc Advisor
to have a list of all installed hardware and software including Product Keys. The Windows 7 Product Key however will be the Factory SLP mass-activation key, you will use the key on COA if necessary to Clean Reinstall or reactivate your re-imaged OS. Clean Reinstall - Factory OEM Windows 7