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Search for devices DevCon can search for devices on a local computer by hardware ID, device instance ID, or device setup class. Change device settings DevCon can change the status or configuration of Plug and Play PnP devices on the local computer in the following ways:.

Restart the device or computer DevCon can restart a local device, reboot the local system on demand, or reboot the local system if required for another DevCon operation. The DevCon source code is also available so that you can examine the methods that DevCon uses to retrieve and change setup and configuration data.

DevCon illustrates the use of general setup functions , device installation functions , and PnP Configuration Manager functions. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info.

Table of contents Exit focus mode. Table of contents. Windows Device Console Devcon. Example Enable a particular device. Example Enable devices by class.

Example Disable devices by an ID pattern. Example Disable devices by device instance ID. Example Update the driver for communication ports. Example Forcibly update the HAL. Example Install a device. Example Install a device using unattended setup.

Example Remove devices by device instance ID pattern. Example Remove a particular network device. Example Scan the computer for new devices.

Example Restart a device. Example Reboot the local computer. Example Assign a hardware ID to a legacy device. Example Add a hardware ID to all legacy devices. Example Delete a hardware ID from all legacy devices. Example Add, delete, and replace hardware IDs. Example Add and Remove Driver Packages. To find the hardware IDs of a particular device, enter the hardware ID or pattern, the compatible ID or pattern, the device instance ID or pattern, or the name of the device setup class.

The user assumes that the pattern appears in one of the device identifiers. You can use these IDs in subsequent DevCon commands. In this case, the phrase "floppy" occurs in the hardware ID or compatible ID of only one device on the computer. If it occurs in the ID of more than one device, all devices with "floppy" in their IDs appear in the output. The following command uses the DevCon HwIDs operation and a device setup class to find the hardware IDs of all devices in the Ports device setup class.

Because DevCon operations can use the device setup class to identify devices, it is useful to create a reference file of the device setup classes of devices on the computer. The following command uses the DevCon Classes operation, which returns a list and description of all classes on the computer. The following command displays all device classes on the computer. The following command uses the DevCon ListClass operation to list the devices in Net, the device setup class for network adapters.

In response, DevCon displays the device instance ID and description of each device in the Net setup class. This display, although interesting, does not provide the hardware IDs of the devices in the Net setup class. The resulting display lists the devices in the Net class and includes the device instance ID, hardware IDs, and compatible IDs of devices in the class. The following command uses the DevCon DriverFiles operation to list the file names of drivers that devices on the system use.

The following command uses the DevCon DriverFiles operation to search for the device driver that the mouse device on the local computer uses. The following command uses the DevCon DriverNodes command and an ID pattern to list the driver nodes of software-enumerated devices. Patterns are useful for finding information about similar devices that might not be in the same setup class. The command uses the at character to indicate that the phrase is in the device instance ID.

The following command uses the DevCon Resources operation to display the resources allocated to devices in the Hdc device setup class. This class includes IDE controllers. The following command uses the DevCon Resources operation to list the resources allocated to the system timer. The following command uses the device instance ID of the system timer in the DevCon resources command.

The following command uses the DevCon Stack operation to search for devices in the Volume setup class and display the expected driver stack for those devices.

In response, DevCon displays the expected stack for the devices in the Volume class. The returned data includes the device instance ID and description of each device, the GUID and name of the device setup class, the names of upper and lower filter drivers, and controlling services if any.

The DevCon Stack operation returns the setup class of a device in addition to the upper and lower filter drivers. The following commands find the setup class of the printer port interface by finding its device instance ID and then using the device instance ID to find its setup class.

In response, DevCon returns the device instance ID displayed in bold text and the hardware ID of the printer port interface. The next command uses the DevCon Stack operation to find the device setup class of the device represented by the device instance ID. An at character identifies the ID as a device instance ID.

The ID is enclosed in quotation marks because it includes ampersand characters. In response, DevCon displays the driver stack for the printer port interface, including the class. The display reveals that the printer port is in the System class. The following command uses the DevCon Stack operation to display the expected stack for miniport driver devices. It searches for devices in the Net setup class that have "miniport" in their hardware ID or compatible ID.

Note that this command first limits the search to the Net setup class and then finds the "miniport" string. It does not find devices other than those in the Net setup class.

The following command uses the DevCon Status operation to find the status of all devices on the local computer. It then saves the status in the status.

The most reliable way to find the status of a particular device is to use the device instance ID of the device. The at character prefixed to the ID identifies the string as a device instance ID.

The ID must be enclosed in quotation marks because it includes ampersand characters. The following command uses the DevCon Status operation to display the status of particular storage-related devices. It searches for the following devices:. In the command, each ID is separated from the others by spaces.

The following command uses the DevCon Find operation to search for mouse devices. Specifically, the command searches the computer for devices whose hardware ID or compatible ID includes "mou.

Because all DevCon display operations also find hardware IDs, you can use any display operation to search for hardware IDs. Select the operation based on the content that you need in the output.

For example, to find the device drivers that mouse-related devices on a local computer use, submit the following command. The following commands use the DevCon Find operation to display all legacy devices on the local computer. The first command finds legacy drivers by a device instance ID pattern. The following command uses the DevCon FindAll operation to find all devices on the computer in the Net setup class.

In response, DevCon lists the following seven devices in the Net setup class. The first six are standard miniport driver devices. Predictably, the DevCon Find command, which returns only currently installed devices, does not list the software-enumerated device because the device is not installed. The following command uses the DevCon ClassFilter operation to display the upper filter drivers for the DiskDrive setup class.

Because this command includes no classfilter operators, DevCon displays the filter drivers for the class, but does not change them. In response, DevCon displays the upper filter drivers for the DiskDrive class and confirms that it did not change them.

In this case, the display shows that devices in the DiskDrive setup class use the PartMgr. When the command starts, the virtual cursor is positioned before the first filter driver. Because it is not positioned on a particular driver, DevCon adds the Disklog driver to the end of the filter driver list.

If you misspell the driver name, or try to add a driver that isn't installed on the system, the command fails. The following command tests this safeguard feature.

It attempts to add "Disklgg" instead of "Disklog" to the list of upper filters for the DiskDrive class. The output demonstrates that the command fails. The command places MyFilter.

The following list shows the filter drivers for the DiskDrive class before the command is submitted. The first subcommand, Disklog , uses the positioning operator to place the virtual cursor on the Disklog filter driver. The second subcommand, -MyFilter , uses the add-before operator - to add MyFilter.

The positioning operator is essential in this example. Before DevCon processes any classfilter subcommands, the virtual cursor is at the beginning of the list and is not positioned on any filter drivers.

If you use the add-after - operator when the cursor is not positioned on a driver, it adds the driver to the end of the list. You can also use the following command to add the MyFilter driver and to place it between PartMgr and Disklog.

In this example, the first subcommand, PartMgr , positions the virtual cursor on the PartMgr filter driver. The first subcommand uses the delete operator! It does not affect the MyFilter. The following command uses the DevCon ClassFilter operation to change the order of filter drivers for the DiskDrive setup class.

Specifically, it reverses the order of the second and third filter drivers. It also shows the intended result of the command. The start operator is necessary because the virtual cursor moves only forward through the list. The following command uses the DevCon Enable operation to enable a programmable interrupt controller that had been disabled to correct a system problem.