Devcon Failed Error
- Yes I found that thread, I can assure you that I use the correct version. (I can disable everything else with devcon, except touchpad.) I guess it just cant be disabled, because it is also impossible to disable from Device Manager.
- DevCon.exe update driver failed. Ask Question Asked 1 year, 7 months ago. Viewed 1k times 0. I am trying to update a device driver via devcon: All attempts below fail. Devcon failed.
- If you get deep enough into dealing with device issues on Windows you'll eventually run into references to the command line Windows Device Console, otherwise known as devcon.exe. This can be an especially handy tool for working with devices on Windows, especially if you need to do so in an automated process. VMware KB 1179.
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Subject: ntdev devcon failed. I am trying to bringup an older test project which installs a root enumerated test driver. On my current Windows 10 test machine devcon with admin rights fails with an incredibly informative error: devcon install mytestl.inf mytest devcon failed. Setupapi.dev.log does not get touched.
I'm on Windows 8.1 trying to disable my clickpad programatically. I've installed the correct x64 bit version of devcon as noted here. I can find the correct device but devcon disable with the same parameters fails.
Which is rather confusing. It obviously finds the right device, but then reports 'No matching devices found'. What the heck?
Please note that I am aware of this similar question but, in addition to not having an accepted answer, that question has a different error and is likely using the wrong version of devcon.
4 Answers
No Matching Devices is the way that windows tells you that it cannot find or access the devices you are looking for. There can be a couple of causes for this:
- Incorrect Permissions caused by not running the command prompt/BAT as an administrator. Simply right-click the relevant access method and select 'Run as administrator'
- Incorrect Access caused by running the wrong version of devcon.exe. As a remnant of the shift to 64 bit computer there are two version of devcon located in the 'Tools' folder, one for x86 and one for x64, ensure that you are running the correct version for your computer and you should be able to perform your tasks without issue.
You are using the wrong 'spelling' in your command.
This should work:
If you already found the exact device you want to disable you can do it like this:
In your case:
If this also doesn't work you should use the remove command. remove works almost always, but the device will be back after you restart the system.
Stedy
No matching devices found. is a confusing way for devcon to tell u to run the command elevated. this is without elevation
this is with elevation
Look at superuser question
Devcon Disable Failed
Resume:
To download correct version devcon x86/x64. Run the devcon commands in cmd.exe with administrative privileges
Indeed, this program offers the ability to assemble images per attribute, to give them different aspects and modify color, pixel, brightness, size, frame, etc. Photoshine free download for pc.
To block/unblock:
Sometimes devcon does not disable:
In this case, the only solution is replace the command: 'disable' by 'remove':
But devcon is not a permanent solution for locking and unlocking devices.The test is that you can lock a usb device and then run bash script renewusb_2k.bat, and you will see that the script reinstall the usb drivers again and the locked usb device becomes accessible again.
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-->Devcon Failed Error Download
Creates a new, root-enumerated devnode for a non-Plug and Play device and installs its supporting software. Valid only on the local computer.
Parameters
/r
Conditional reboot. Reboots the system after completing an operation when a reboot is required to make the change effective. By default, DevCon does not reboot the system.
INFfile
Specifies the full path and file name of the INF file for the device. If you omit the path, DevCon assumes that the file is in the current directory.
HardwareID
Specifies a hardware ID for the device.
The specified hardware ID must exactly match the hardware ID of the device. Patterns are not valid. Do not type a single quote character (') to indicate a literal value. For more information, see Hardware IDs and Device Identification Strings.
The system might need to be rebooted to make this change effective. To have DevCon reboot the system, add the conditional reboot parameter (/r) to the command.
You cannot use the DevCon Install operation for Plug and Play devices.
The DevCon Install operation creates a new non-Plug and Play device node. Then, it uses the DevCon Update operation to install drivers for the newly added device. As a result, the success message for the DevCon Install operation reports that DevCon has created the device node and that it has updated the drivers for the device.
If any step of the DevCon Install operation fails, DevCon displays a failure message and does not proceed with the driver installation.
The DevCon Install command creates a new non-Plug and Play device node each time you run it. To update or reinstall drivers, use the DevCon Update command.