1) Locate the jogl-natives-windows-amd64.jar and gluegen-rt-natives-windows-amd64.jar in your "processing\libraries\opengl\library" folder.
2) Either use the "jar -xvf" command to unpack these Jar files (or just rename the .jar extension to .zip and use your favorite unzip tool)
These Java Archives (JAR) contain (among others) the following files:
gluegen-rt.dll jogl_awt.dll jogl_cg.dll jogl.dll
3) Overwrite your original files of the same name with these you've just unpacked.
Ideally we wouldn't need to go through this step by step, the relevant jars would be added to classpath based on your operating system and architecture. This functionality is pending development, listed as Issue 255.