Update info to my previous post above.  Not sure why but all the letter D were removed from my post and it may cause confusion when reading.  Please add letter D next to the word "drive" when reading.  It would make the context understandable.  
I have a lot of files on my old C drive of my Dell Inspiron from 2018, organized into folders for different clients.  I just purchased a new Inspiron. This new one uses a feature I am not used to: SSD.  I used the Dell Migrate tool to move files from my old computer to the new. Naturally, it put all of my client folders on the C drive. Well, now that the C drive is only 256MB, it filled up quite quickly. So now I have no room left on my C drive for anything else. This SSD vs HD is very new to me. Is the proper way to handle this is to move all my client files off the new C drive and onto the new D  drive??
help with new SSD