Running Windows 7 on a Compaq Presario CQ60 laptop. Most times during shut down, it will go to a light blue screen with the message, "Preparing to Configure Windows - Do not shut down your computer". It will stay this way for hours with the hard drive active the whole time. I eventually have to force it to shut down. It seems to act OK at the next startup, but will likely repeat the process at shut down. Any ideas how to end this cycle?