The apple Keyboard has 2 USB ports on the underside of the keyboard. When using these ports in windows, the power per USB port is limited. Due to this limitation, the ports on the keyboard are useless, even a USB-stick requires more power. Here is a guide on how to force windows to allow 500mA!
– Only use this guide for the Wired Apple keyboard.
– NEVER use more than 500mA!
before starting, it’s recommended to unplug all hubs and plug your keyboard directly in your computer. This will simplify this guide but it will work either way.