Hello everybody, I've got this problem today, I booted my PC and I went to the bathroom and suddenly the pc went in blue screen (my brother told me when I went back), since then the USB ports are not working anymore, I mean by none of all of them is still working (Mouse, Keyboard, External Hardisk). I tried to reboot it several times, no luck. The main problem is if you are going to tell me to go in some settings to resolve this problem, I can't because I can't even access to the user interface. But when I rebooted to access the BIOS it worked finely... I don't know why is that. Any help is appreaciated. Greetings.