I had the same problem after changing out my hard drive and reinstalling windows 7 64 bit. I installed Intel Rapid Storage Technology drivers and that cured the problem (I had to restart after installation)
Thanks for your response. I have gotten this issue fixed and have not had any further problems. I must admit I was a bit skeptical at first dealing with the technician from them, but he did such a good job and was so very patient with me that I was completely satisfied with his ability and help.
Solved the problem. Yea!!!