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

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Article ID:283412
Last Review:December 1, 2007
Revision:1.3
This article was previously published under Q283412

SYMPTOMS

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.

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CAUSE

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

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WORKAROUND

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.

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STATUS

This behavior is by design.

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APPLIES TO
•Microsoft Windows XP Home Edition
•Microsoft Windows XP Professional
•Microsoft Windows XP Professional x64 Edition

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Keywords: 
kbhardware kbnetwork kbprb KB283412

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