To install an Uninterruptible Power Supply (UPS) device
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.
Follow the manufacturer's instructions for physically installing the UPS device.
Open Power Options in Control Panel.
On the UPS tab, click Select.
In the UPS Selection dialog box, under Select manufacturer, click the manufacturer of the UPS device attached to the computer.
Under Select model, click the model of UPS device attached to the computer.
Under On port, click the serial port where the UPS device is attached, and then click Finish.
To open Power Options, click Start, click Control Panel, click Performance and Maintenance, and then click Power Options.
Using Power Options in Control Panel, you can adjust any power management option that your computer's unique hardware configuration supports. Because these options may vary widely from computer to computer, the options described may differ from what you see. Power Options automatically detects what is available on your computer and shows you only the options that you can control.