2 Questions: My CPU fan recently stopped working. I had it replaced but the repair shop told me I would not be able to do anything about the error message on startup of, "CPU FAN NOT DETECTED" and that I would have to press F1 each time on startup in order to continue. Is there any way to remove this message? Also, how do I create a default OS so that I do not have to choose from the list of 2 at each startup? These two issues are quickly becoming an annoying start to booting up my computer. Thank you.