Changing the numbers on COM Ports in Windows 2000

Posted on 2006-03-31
Last Modified: 2010-04-13
I have a Windows 2000 machine with software that HAS to print to COM1.  There's no way to change that.  A user went in and deleted COM1 and it became COM3.  They have deleted the COM port several more time and the number keeps increasing.  I'm now up to COM11.  We're dead in the water without this printers

How do I change the number of the COM port back to COM1 in Windows 2000?
Question by:SchottSolar
    LVL 77

    Expert Comment

    by:Rob Williams
    I assume you are referring to the printer ports being deleted. Can you open the printers window, click on File | Server properties | Ports and add them back in, using "Add a Port"?

    If you are referring to the hardware port, you should be able to open the Add/Remove hardware wizard in the control panel and choose add/troubleshoot a device, then "add a new device", No, I want to select the hardware from a list, and choose ports.....


    Author Comment

    I'm talking about the hardware port, and I already tried what you suggested.  It also doesn't allow me to change the port number, it simply readds the port with the next sequential number.

    Any other ideas?  Thanks for responding so quickly.
    LVL 77

    Accepted Solution

    I haven't tried this but you could try editing the registry:
    Default settings for Com Port 1 if you need them are:
    IRQ = 4
    I/O = 03F8
    Baud = 9600
    Data Bits = 8
    Parity = none
    Stop Bits = 1

    If you are not familiar with editing the registry, please read the following regarding backing up, editing and restoring:

    Author Comment

    That was PERFECT!!! Thanks so much!  Points go to you, RobWill.
    LVL 77

    Expert Comment

    by:Rob Williams
    Great ! glad to hear. Thanks,

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