How should i bake a normal map? The one of the left is the material with the original normalmap of the material(a downloaded PBR)and the one of the right is used the normal baked by putting the color map of my texture in the displacement(I baked my normal map without checking selected to active)How should i bake a normal map ?(just for the material )



These are the textures :

In the node editor i just connetced those textures(i changed to noncolor data after i made the screenshot)

Here is the fiel:


Edited :
I achieved the desired result by baking in blender render.How I could do this in cycles ?
had this same head ache i found the following video by andrew price at blender guru helpful in his anvil series

also same process for other types of image files too eg: specular, diffuse, etc

how to bake perfect normals blender 2.79