I have 3 partitions on my drive, Windows 7, Windows 8 & Documents. I am trying to see if there is a way that windows 8 backup can backup all three partitions and if not, what is the best way to achieve this result?
Use Macrium Reflect and image the drive (ie. all partitions) to an external drive. This could be done from Windows 7, Windows 8 or from a stand alone CD. You could then restore all, any one or two partitions or individual files from any of the partitions.