Hi, Cannon.
Have another look in your crystal ball (mine's cloudy) and tell us:
What is the FULL error message? At what point do you see it? What program
are you running when the message appears?
Depending on the answers to these questions, we may have others, such as:
make and model of your computer; how many HDs and how are they partitioned;
what other peripherals are installed? We probably can help you more quickly
if you tell us that in your Reply.
RC