The mother board on my old computer died, along with my access to Lightroom on it. I was able to get all of my photos off the computer, but not Lightroom. I want to transfer the program onto my new computer. How do I do it?
Make sure you can save your catalog - look for *.lrcat files.
Here is where to find everything else: https://helpx.adobe.com/lightroom/kb/preference-file-locations-lightroom-41.html
Are you using a stand-alone version or do you have a subscription? Version?
As long as You do have access to the Old computers harddrive this should be quite easy.
Simply install LR onto the new machine.
Now for the settings, preferences and presets you need to copy the Lightroom user folder from your old computer to the new one. that is (under windows):
its all in there
And then point LR to the restored Catalog File.