Hi twiggy, a few more details might help a bit Is this an error your recieving through Symbi, or your personal computer maitenance done through a program such as System mechanic, advanced system care, or similar program. Or is it your your windows Os system maitenance that hides in the background of windows 8 that gives this error ???
Twiggy, that doesn't really help us understand the issue, we need to know where at you are seeing the errors to be capable of helping you. Is it an error from Symbi? Or is the error from another program? Knowing what program is giving the error helps tremendously as that is not a Windows specific error really.