When starting my computer, on the screen that the BIOS shows computer specs in black and white, it says something like "Initializing USB controllers", and always has. Except now, for some reason, it takes a significantly longer time to do so, like upwards of half a minute sometimes, whereas it used to be instant. I haven't changed anything on my computer's setup, haven't plugged in anything new, etc. Furthermore, I haven't changed anything in the software either. Help would be appreciated.