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How to close a Com port on a laptop. How to close a Com port on a laptop.
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Technology: Discuss How to close a Com port on a laptop. in the Non-Diving Related Forums forums: Whilst trying to unlock my Nokia 6630, I managed to open com port 8 (com8) on my laptop, however the ...

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  #1 (permalink)  
Old 06-02-08, 06:10 PM
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How to close a Com port on a laptop.
Whilst trying to unlock my Nokia 6630, I managed to open com port 8 (com8) on my laptop, however the program crashed without exiting properly, and now Com8 appears to be stuck open. Is there any way I can force it to shut (from the DOS prompt maybe? I've looked in the device manager, but com8 isn't listed.

Cheers

Darren
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Old 06-02-08, 06:29 PM
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Assuming its a USB cable, com port emulator.

Sounds like it's a driver / software problem.

Its unusal for a laptop to have more than one physical com port, hence yout won't see anything at bios level.

Check the windows device manager and potentially just hit delete on the port.


Davie
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Old 06-02-08, 08:20 PM
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Originally Posted by thehappychappy
Check the windows device manager and potentially just hit delete on the port.


Davie
Nope, nothing in the device manager to delete.
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Old 06-02-08, 08:51 PM
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reboot
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Old 06-02-08, 08:53 PM
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reboot
Nope, sorry. it's been turned off/on 3 or 4 times since then.
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Old 06-02-08, 09:32 PM
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Ports are opened by the software which require them. Normally they are closed when the software is shut down/exited.

If the software crashed it is concievable that a reference to com 8 has been left orphaned in the registry. Windows will might then open the unrequired port.

I'd try Registry Mechanic or similar.

Or search the registry (regedit) for references to com 8 and trace it from there.
I just love deleting bits of registry

Paul
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Old 06-02-08, 09:36 PM
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Originally Posted by Paulus
Or search the registry (regedit) for references to com 8 and trace it from there.
I just love deleting bits of registry

Paul
This sounds a bit dodgy, is it recommended that IT idiots (moi!) meddle with the registry!! I have the option to take a system backup at any point, which I guess I could restore if I cock things up.
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Old 06-02-08, 10:18 PM
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Quote:
Originally Posted by Darren A
This sounds a bit dodgy, is it recommended that IT idiots (moi!) meddle with the registry!! I have the option to take a system backup at any point, which I guess I could restore if I cock things up.
If you use a registry cleaning jobby like Registry Mechanic it is all done automatically.

Registry data is a bit like Brain matter, you can carve great chunks out without ever noticing a change. On the other hand it can be devastating

I must admit that I have deleted nasties from the registry quite regularly. Single registry values are quite often clearly associated with a single function. Even if you delete/edit the wrong thing it rarely causes great harm. I never killed my puter yet!!

It's your call

Paul
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  #9 (permalink)  
Old 06-02-08, 10:25 PM
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In Windows Device Mangler, do "view - show hidden devices" or some such and see if that shows up the errant device...
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Old 06-02-08, 11:11 PM
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Quote:
Originally Posted by David P
In Windows Device Mangler, do "view - show hidden devices" or some such and see if that shows up the errant device...
Sounded a good idea, but didn't show anything extra Thanks for the advice though!
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