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 Post subject: How to clear or Reset COM port used for USB devices
PostPosted: Sat 27 Feb 2010, 11:54 
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New - عضو جديد
New - عضو جديد
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Joined: Sun 21 Feb 2010, 22:48
Posts: 2
Location: Oran
Hi for all,
Please can any one help me in my problem.

I have had install more mobile phones to my pc via Windows XP SP3 so to connect theme in order to do a file transfert as like : songs, images, java and more other.

After, i found that many com ports are signed into control panel -> device manager so this my make wrong parameters or make limits to software that i use.

Any one can tell me what can i do as solution to clear or reset all virtual com ports in order to reuse theme again.
I have more than 40 com ports and i want to start from com3, com4, ... etc.

Thank you giving me a solution.

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Hummer is the Best


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 Post subject: Re: How to clear or Reset COM port used for USB devices
PostPosted: Sat 27 Feb 2010, 12:25 
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Beginner - عضو مبتدء
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Joined: Tue 13 Jan 2009, 20:46
Posts: 44
Hi Hummer, nice to meet you ... :)

Here are the steps which you can use to free all ports.

1. Click start –> Run –> type regedit and click OK button.
2. This will open a Registry editor.
3. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\COM Name Arbiter
Image
regedit - comp port

Now right panel , you can see a key ComDB right click to that key and click modify. ComDB
Image
In value Data section select all and delete reset to Zero ‘0’.

click OK

Close Registry editor and then restart your computer. all COM ports are now Free, you may need to reinstall any USB to serial convertor.

Note: It is always good to take back up before deleting any entry from Registry, to take back up for Com Name Arbiter, in left panel right click on COM Name Arbiter and say Export, save with some name and appropriate location.


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