Next i'll show you how to change those predefined folders with some of your own.
1. Open Start Menu and pick one of those folders. I've selected the Documents for editing because who uses Documents anyway?
2. Next, right click the folder and the select Properties, a new window will appear. Remove all library locations (because you won't need them anymore).
3. After that, press the Include a folder button and select the one that you want to have a quick access to.
You will want to select Optimize this library for General items because thumbnails and stuff
And you're done. Now you can quickly jump to your favorite folders.