I have this problem. I can't go to the BIOS because keyboard doesn't working. And I reseted Windows 10 and in begginer settings mouse and keyboard doesn't working! And if I start on my computer it said No Keyboard Detected!
1: are you using a wired or wireless mouse and keyboard?
If wireless: do you have batteries in the mouse and keyboard or is the internal battery charged? is there a power switch turned off on either? Is the wireless adapter plugged into USB ports on the computer?
If wired: are the devices plugged in?
2: Where are the USB ports you are using? Are they on the case or the back of the motherboard?
If the case: is the case front USB header plugged in to the motherboard?