My desktop is locked
I am not able to drag any file onto my desktop. I can access and save files onto the desktop folder in Finder but not onto the visual desktop. When I try to drag a file onto my desktop a lock symbol appears. When I right click on my desktop to create a new folder, it comes up with an error, "The operation can't be completed (An unexpected error occurred, error code -8072)" . In my user folder in Finder, the desktop icon also has a lock symbol on its bottom right corner. You should be able to see this in the image I have uploaded.
Does anyone know how to unlock it?