CODEWITHSUNDEEP
devcon
Taylor
Taylor

Reputation: 23

Using Devcon to disable a USB port

I am trying to find a way to be able to enable/disable a USB port on my computer via command prompt or powershell.

I have looked EVERYWHERE and the only possible solution I have found is by using the devcon disable command. However, when I try to use it, I always get this "Disable failed" in response.

Is there something wrong with my command, or maybe am I trying to disable the wrong device? Of course, let me know if this isn't enough information. Thanks!

C:\WINDOWS\system32>devcon find usb*

USB\VID_045E&PID_07BE\5&16B1AE89&1&7                        : USB Composite Device
USB\VID_1286&PID_204B\0000000000000000                      : Marvell AVASTAR Bluetooth Radio Adapter
USB\VID_045E&PID_07BF&MI_00\6&15943EE&0&0000                : Microsoft LifeCam Rear
USB\VID_0BDA&PID_0307\201006010301                          : Realtek USB 3.0 Card Reader
USB\VID_045E&PID_07BF\5&16B1AE89&1&8                        : USB Composite Device
USB\ROOT_HUB30\4&3A935074&0&0                               : USB Root Hub (USB 3.0)
USB\VID_045E&PID_07BE&MI_00\6&2299716&0&0000                : Microsoft LifeCam Front
USBSTOR\DISK&VEN_REALSIL&PROD_RTSUERLUN0&REV_1.00\0000      : SDHC Card
USB\VID_045E&PID_07DC\034478250254                          : USB Input Device
USB\VID_046D&PID_C52B\5&16B1AE89&1&1                        : USB Composite Device
USB\VID_046D&PID_C52B&MI_02\6&733402B&0&0002                : USB Input Device
USB\VID_046D&PID_C52B&MI_01\6&733402B&0&0001                : USB Input Device
USB\VID_046D&PID_C52B&MI_00\6&733402B&0&0000                : Logitech USB Input Device
13 matching device(s) found.

C:\WINDOWS\system32>devcon disable "@USB\ROOT_HUB30\4&3A935074&0&0"

USB\ROOT_HUB30\4&3A935074&0&0                               : Disable failed
No matching devices found.

Upvotes: 1

Views: 8654

Answers (2)

ThP...
ThP...

Reputation: 5

I had the same problem with Windows 10 and I solved when change the devcon executable file privileges. To work devcon.exe must have administrator privileges.

You can find how to do it here.

Upvotes: 0

cazet cazet
cazet cazet

Reputation: 11

To help anybody finding this topic, I encountered this failure on WIN7 64bits. I solved it with a devcon 64bits (69kB) instead of devcon 32bits (55kB). See also

delphintipz.blogspot.com/2012/07/disable-failed-no-devices-disabled.html

Upvotes: 1

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