My keyboard was working perfectly fine. I was trying to get into safe mode by pressing F8 and my keyboard hasn't worked since. I now get a No Keyboard Detected Press F1 error when booting up. When Windows boots up both my keyboard and mouse do not work. I have a Microsoft Digital Media Keyboard. The keyboard is connected via PS2. There is an F Lock key on the keyboard and when I press this while the computer is booting up the light goes on and off. The F Lock is on so that the F1-F12 keys work. When I connect the keyboard through USB I do not get the No Keyboard Detected error and the keyboard and my mouse work once in Windows. The problem I have with this is that I run two operating systems and the keyboard doesn't work through usb until windows starts up so I can't choose which OS I want to boot up. I also can't get into the BIOS when connected through USB. I need the keyboard working through PS2. I tried different USB-PS2 adapters to eliminate the adapter as the problem but it doesn't work. Can someone please help me with this one? Thanks.