Disable USB Modem

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(imported topic written by jefta_vito91)

Hi,

How to disable USB Modem on the client? I know that we could restrict access to usbstor.inf, but i don’t know which file is used for the modem that is using USB port.

Any help is much appreciated.

Thanks.

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(imported comment written by BenKus)

Hi Jefta,

If you can figure out a way to disable it from the commandline or by modifying the registry or a file, we can help you put it into a Fixlet to perform the same action on all your computers… but I don’t know of a way to disable the USB modems myself…

Ben

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(imported comment written by jefta_vito91)

Hi Ben,

Thanks for the reply. I’ve found out which registry needs to be modified. It is in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\usbser. It has image path to system 32\drivers\usbser.sys. But I don’t know what to do with this registry. Any help? Thanks.

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(imported comment written by heru_h91)

Hi Jef,

I think your key in your registry depends on what or have you installed the USB modem in the client, in my pc and the server the key doesn’t exist. maybe like in USBSTOR you can change “Start” value to 4 and see if the USB modem disable or not.

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(imported comment written by jefta_vito91)

Yes, I think it depends on what USB Modem plugged in. For the Huawei Modem, it typically creates this key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\hwdatacard. I changed the Start value to 4 and it worked. I cannot use it anymore on my Windows 2003.

Is there any general key that shows that there is a USB Modem?

Could someone help to guide on putting this into a fixlet?

Thanks.

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(imported comment written by jefta_vito91)

I disable the key for Modem instead. It actually resolve my problem even if it makes any modem become disabled.