To get any further assistance your PC’s BIOS settings you can always refer to your computer manual. But for more valid information on how to enable the power management in the computer features both for BIOS and Windows, please refer to the Windows manual. Still if you have difficulties using the extra browsing buttons or the special mouse functions such as Funkmaus, Schnurlose Maeuse mit Bluetooth or Funk﹣Lasermause it is better to be sure that you have opted for the right mouse and keyboard driver correctly. It is also check your both software and hardware requirements which meet those listed in the manual. It is always good to use the wireless mouse only on a flat, clean, non-slippery surface to ensure accurate and smooth cursor action.