COM Port Missing from List of Available Ports When You Try to Install a New Modem

Article translations Article translations
Article ID: 283412 - View products that this article applies to.
This article was previously published under Q283412
Expand all | Collapse all


While you are using the Add Hardware Wizard to install a new modem, you may find that one of your COM ports is not in the list of available COM ports.


This behavior can occur if another program or service is holding that COM port open.


To work around this behavior, quit the program or service that is holding the COM port open, and then run the Add Hardware Wizard again.


This behavior is by design.


Article ID: 283412 - Last Review: December 1, 2007 - Revision: 1.4
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Professional x64 Edition
kbhardware kbnetwork kbprb KB283412

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from