Problem with moving Libraries onto seperate drive.

Hello!
I just finished my first ever build yesterday and now I am up to the bit where I install everything and move everything. The thing I am currently trying to do is to move my default folders such as Documents and Music from my SSD to my HDD.

What I have been doing is creating a folder with the same name as on the main drive, but without the "my" in it. So I have created a "Documents" folder in on my HDD and I still have a "My Documents" folder on my SSD. Then after that I click on properties in the sidebar> Include a folder> Set save location.

My issue is that whenever I do that windows for some reason renames "My Documents" to "My Documents (1)" as well as placing a lock icon on the HDD folders.

How do I go about solving this?