Your problem is that you are using the Office Keyboard via USB and the BIOS has the option to detect USB keyboards disabled!
I had the same problem. You need to tell the BIOS to enable the USB keyboard at booting. For that you have to get into the BIOS which is impossible at the moment since you have a USB keyboard, so the cat bites itself in the own tail! I would suggest to get the adapter plug for the USB keyboard and use it on the PS2 port, get into the BIOS and enable USB keyboard (and mouse) support! OR get an older PS2 keyboard and do the same.
Should do the trick
Brgds