Windows 7 doesn't accept my Keyboard, HURRAY.

Try the next USB port. Yes, it's tedious. I will check another resource.

Whatever helps

Onboard Devices
Integrated NIC
(On default)
Enables or disables the integrated NIC controller. Settings are Off, On, On w/ PXE, or On w/RPL. When the On w/ PXE or the On w/RPL setting is active, if a boot routine is not available from the network server, the computer attempts to boot from the next device in the boot sequence list.
Integrated Audio
(On default)
Enables or disables the onboard audio controller.
USB Controller
(On default)
Enables or disables the internal USB controller. No Boot enables the controller but disables the ability to boot from a USB device.
NOTE: Operating systems with USB support will recognize USB floppy drives regardless of the No Boot setting.
Rear Dual USB0
(On default)
Enables or disables the indicated group of USB ports on the back of the computer.
Rear Dual USB1
(On default)
Enables or disables the indicated group of USB ports on the back of the computer.
Front USB
(On default)
Enables or disables the indicated group of USB ports on the front of the computer

1. 2 back 2 front.
2. It only allows Yes or No on USB settings.

Please provide your Dell Service Tag.

Please direct my to what it is.
EDIT 4USB plugs at the back, 2 front sorry.

It's a sticker on the computer, perhaps on the back or bottom. It says, Service Tag.

Since you corrected the USB port count, it may not be necessary. Also, have you tried other rear USB ports?

Yes, alas to no avail.