Hi yellowhoody
In the following, I am presuming the HDD is Drive D, if it is not, please replace where necessary
Open Windows File Explorer
On the top right, right click your Documents library folder and choose Properties
Choose the Location tab
In the Location Box, type D:\Documents
Then click Apply and OK and confirm that move
That will move your Documents folder to the HDD
Do the same for Pictures, Music and Videos, each time change the folder location, for example Pictures will go to D:\Pictures
When that is done all your personal folders will be moved to your HDD and all files copied into them will automatically go to your HDD, not your SSD. And you will have a lot more free space on your SSD
That's It!