To change Serial Keys options

Serial Keys is designed for people who have difficulty using the computer's standard keyboard or mouse. Serial Keys provides support so that alternative input devices, such as single switch or puff and sip devices, can be plugged into the computer's serial port.


Open Accessibility Options 


On the General tab, under SerialKey devices, click Settings.


Change the serial port and baud rate for your SerialKey device as appropriate.


To use Serial Keys, Fast User Switching must be turned off. (Fast User Switching is only available on Windows XP Home Edition and Windows XP Professional when it is not joined to a domain)

For information about turning off Fast User Switching, click Related Topics.


To open Accessibility Options, click Start, click Control Panel, and then click Accessibility Options

Related Topics

Turn Fast User Switching on or off

Turn Fast User Switching on or off

Fast User Switching

On-Screen Keyboard overview

Accessibility Wizard

Control Panel accessibility options

Turn on Serial Keys

© 2017 Microsoft Corporation. All rights reserved. Contact Us |Terms of Use |Trademarks |Privacy & Cookies