The file couldn’t be saved because you don’t have permission.(513)
Attempting upgrade from 10.9.1 to 10.9.2. Get the "don't have permission" when attempting from AppStore. Manual download pathway doesn't work either. System reboots but no installation takes place. Have performed "repair disk permissions" three times. Concerned about repairs taking place after the first repair. If repair worked properly everything should be fine after first attempt and second attempts. Thus this route doesn't see like the answer. I am quite surprised that Apple does not have a solution to this problem. Having to go into "terminal" and reprogramming is not a user friendly pathway. This is the sole solution I have seen but am concerned about executing it. Others are having the same issue. Neither upgrade solution works. Any advice would be appreciated.
MacBook Pro, OS X Mavericks (10.9.1)