SOLUTION: Ghost 15: cannot create recovery point because of a non available drive (467502)

According to this article

http://community.norton.com/t5/Other-Norton-Products/Ghost-15-cannot-create-recovery-point-because-of-a-non-available/td-p/467502 (Thread is closed)

I found a very simple solution for this problem:

 

Go into the disk management console of windows and assign a drive letter to the "SYSTEM-RESERVED" partition and delete it straight after.

Then the recovery points set also works for that partition and you can now backup your whole drive with recovery points.