Well basically what I mean is that your problem might be that you have the wrong ACPI drivers installed. If this is the case then in device manager (in the list of hardware) under computer you should see ACPI Uniprocessor PC. You need to change this driver from ACPI Uniprocessor PC to ACPI Multiprocessor PC. However I guess you wonÂ’t be able to do this because of the blue screen of death. The only thing I can think of to fix a blue screen of death is to format. Well good luck anyways.