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Device Manager Information in Windows 7

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This document pertains to HP Notebook PCs with Windows 7.
Device Manager is a tool that allows you to check the condition of your computer's hardware components such as the optical disc drive, graphic display, sound chip, and webcam. Specific actions you can perform using Device Manager include the following:
  • Identify hardware and drivers are installed on your computer.
  • Update drivers.
  • Uninstall unneeded or conflicting drivers, and reinstall drivers using the HP Recovery Manager.
  • Display error information.

Locating Device Manager

To open Device Manager and view hardware and driver information, use the following steps:
  1. Click Start , enter device into the search field, and then select Device Manager from the list.
  2. Double-click a device type (for example, Display adapters ) to view an expanded list of devices in that category.
  3. Right-click a device and select Properties to view the general information about the drivers.

Defining Device Manager properties tabs

The following table will explain briefly what each tab in Device Manager entails:
TabDefinition
GeneralLearn about the driver regarding the type, manufacturer, location, and working status. The status of the device will inform you if there is an error or if it is working properly.
DriverLearn about the provider, date installed, and version of the driver. Also, there are several actions such as updating the driver, disabling the driver, and uninstalling the driver.
DetailsLearn about detailed technical information about the driver. This tab will seldom be used.
ResourcesLearn about available resource settings and information about driver conflicts. See Identifying detailed error codes to learn more about what each error code means. This tab will seldom be used.

Understanding the Device Manager toolbar

You can use the Device Manager toolbar to perform various actions to the hardware devices you have on your computer. Scroll over each icon to see text that describes each task.
Figure 1: Device manager toolbar buttons

Understanding Device Manager error symbols

Device Manager uses the following symbols to provide information about a particular error condition with a specific system device:
SymbolDefinition
Yellow Bang

Indicates a problem. An error code will display for the device.
Disabled Device

Indicates a disabled device. A disabled device is physically present in the system, and is consuming resources, but does not have a protected-mode driver loaded.
Automatic Settings manually selected

Indicates that the device settings were manually selected. It does not indicate a problem or a disabled device state.
Specific Driver not available

Indicates that an exact (device-specific) driver is not available, and that a compatible driver has been installed.

Identifying detailed error codes

When an error message is displayed in the Device Manager Properties tab, the specific code will indicate the correct solution. Use the table below for assistance.
To find the error code, use the following steps:
  1. Click Start , enter device into the search field, and then select Device Manager from the list.
  2. Double-click a device type (for example, Display adapters ) to view an expanded list of devices in that category.
  3. Right-click a device and select Properties to view the general information about the drivers.
    In the Device status field, if there is a problem, an error code will be displayed.
One common solution to an error is to install BIOS, driver, and software updates. In Device Manager, double-click a device type (for example, Display adapters ) to view an expanded list of devices in that category. Right-click a device and select Update Driver Software to find updates for your driver.
Another common solution to an error is to remove a device from Device Manager. In Device Manager, double-click a device type (for example, Display adapters ) to view an expanded list of devices in that category. Right-click a device and select Uninstall to remove the device from Device Manager.
Device Manager error codes
Error codeError descriptionSuggested resolution
Code 1Device is not configured correctly.Follow the instructions in the Device Status box.

Alternately, remove the device in Device Manager or scan for hardware changes.
Code 2Depending on which device is failing, you may see either of two different messages. This code means that the device loader did not load a device. For ISAPNP, PCI, or BIOS issues, the following message displays: could not load the driver for this device because the PC is reporting two <type> bus types. (Code 2)

For other issues, the following message displays: <type> device loader(s) for this device could not load the device driver. (Code 2) The
Install the latest version of BIOS software for your notebook. Restart the PC then remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.
Code 3The device might be corrupted or the computer is low on memory or other resources.Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device. Simply restarting the computer or deleting large files from the hard disk drive may also resolve this issue.
Code 4The INF file for this device is incorrect or the registry is damaged. For example, the .inf file specifies a field that should be text, but is binary instead.Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.

If this error code reappears, update the driver.
Code 5Device failure is due to lack of an arbitrator. Remove the device from Device Manager, update the driver, and restart the computer to reinstall and reinitialize the device.
Code 6There is a conflict between this device and another device.On Resources tab, manually enter the custom settings or replace the device with one that is compatible with Plug and Play technology.
Code 7No configuration can be performed on the device.If the device works correctly, it is not necessary to perform any steps to correct the code.

If the device does not work correctly, remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.

If this error code reappears, update the driver.
Code 8Device loader for a device could not be found. For example, the .inf file for the device may refer to a missing or invalid file.

If the DevLoader is a system DevLoader, the following text displays: device is not working properly because Windows cannot load the file <name> that loads the drivers for the device.
For most cases, reinstall or update the driver. Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.

If this error code reappears, contact the hardware manufacturer about updated drivers.

If the problem cannot be resolved, perform a system recovery.
Error codeError descriptionSuggested resolution
Code 9Information in the registry for this device is invalid.Remove the device and install the device again.

If this error code reappears, contact the hardware manufacturer for the proper registry settings.
Code 10Device failed to start (for example, it is missing or is not working properly). This message can vary greatly because the text for this message can come from the driver.Be sure that the device is attached to the computer correctly. For example, be sure that all cables are connected firmly and that all adapter cards are fully inserted into their slots.

Follow the instructions in the Device Status box, and obtain the latest drivers from the HP Drivers and Downloads page.
Code 11Device failure. Remove and reinstall the device, update the driver, and make sure that the device is compatible with the version of Windows that you are using.
Code 12Two devices are assigned to the same resource, or the BIOS settings are not providing the driver with enough resources.Disable or remove one of the devices that is involved. Use the Resources tab in the device properties to manually enter the settings or replace the device with one that is Plug and Play compatible.
Code 13Device failed due to a problem in the device driver.Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.
Code 14The device has encountered a problem that may be resolved by restarting your computer.Restart the computer.
Code 15Device resources are conflicting with the resources of another device.Use the Resources tab in the device properties to manually enter the settings or replace the device with one that is Plug and Play compatible.
Code 16The device was not fully detected. When a device is not fully detected, all of the resources for the device may not be recorded.Use the Resources tab in the device properties to manually enter the settings or replace the device with one that is Plug and Play compatible.

If this error code reappears, obtain the latest drivers from the HP Drivers and Downloads page.
Code 17Hardware is a multiple-function device and the .inf file for the device is providing invalid information on how to split the device resources to the child devices.Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.

If this error code reappears, obtain the latest drivers from the HP Drivers and Downloads page.
Code 18Device needs to be reinstalled.Follow the instructions in the Device Status box. If that does not work, remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.
Error CodeError descriptionSuggested resolution
Code 19The registry returned an unknown result.Follow the instructions in the Device Status box, which will run Scanreg.exe.

If this does not resolve the issue, type scanreg/restore from a command prompt.

Finally, remove the device from Device Manager, and re-detect by installing the device again.
Code 20VxD Loader (Vxdldr) returned an unknown result. For example, there could be a version mismatch between the device driver and the operating system.Follow the instructions in the Device Status box.

If this error code reappears, remove the device from Device Manager and installing the device again.
Code 21The device has a problem that may be resolved by restarting your computer.Shut down Windows, turn off your computer, and then turn it back on.
Code 22This device is disabled.Enable the device. Right-click the name of the device in device manager, select Enable , and then restart the computer.

If this error code reappears, remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.

Is the device disabled in the BIOS? Enable the device from the BIOS setup utility .
Code 23The device loader delayed the start of a device and then failed to inform Windows when it was ready to start the device.Verify the settings for the primary display adapter in Display properties. Remove the primary and secondary display adapters from Device Manager, and then restart the computer.

Verify that the drivers are current and installed correctly.

For devices other than display adapters, follow the recommended solution.

If this error code reappears, remove the device from Device Manager and restart the computer.
Code 24The device is not present, is not working properly, or does not have all of the device drivers installed.Follow the instructions in the Device Status box.

If this error code reappears, confirm that the device is connected to your computer correctly. For example, be sure that all cables are correctly installed, or that the adapter cards are properly seated in their slots.
Code 25This problem typically exists only during the first and second boots after Windows Setup copies all the files. As such, if this code is identified, it is likely an incomplete installation.Follow the instructions in the Device Status box. It may be necessary to perform a system recovery.
Code 26A device did not load. There may be a problem in the device driver or all the device drivers may not have installed.Follow the instructions in the Device Status box.

If this does not work, use Device Manager to remove the device and then restart the computer.

If this error code reappears, update the driver.
Code 27The portion of the registry describing possible resources for a device does not contain valid entries. For example, the device is marked as configurable, but the configuration information in the .inf file is set to hardwired.To resolve this error code, use Device Manager to remove the device, and then restart the PC.

If this error code reappears, update the driver.
Code 28Drivers are not installed.Follow the instructions in the Device Status box. If that does not work, remove the device from Device Manager and restart the computer.

If this error code reappears, obtain the latest drivers from the HP Drivers and Downloads page.
Error codeError descriptionSuggested resolution
Code 29The device firmware did not provide enough resources.Update the driver for the device.

If this error code reappears, the device may be incompatible with the version of Windows that you are using, the device hardware may have failed, or the connection to the device may be bad.
Code 30An IRQ cannot be shared.There may be two hardware devices that are jumpered to the same IRQ. Update the hardware to Plug and Play compatible versions, or correct the jumper settings.
Code 31Windows cannot load the drivers required for this device.Update the driver for the device.

If this error code reappears, the device may be incompatible with the version of Windows that you are using, the device hardware may have failed, or the connection to the device may be bad.
Code 32A driver (service) for this device has been disabled.The start type for this driver is set to disabled in the registry.

Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.
Code 33 Windows cannot determine which resources are required.The device may not be compatible with the version of Windows that you are using. You may need to replace the device with a Plug and Play compatible device.
Code 34 Windows is unable to determine the configuration settings for a device you are attempting to install.To resolve this error code, click the Resources tab in the device properties to manually enter the settings or replace the device with one that is Plug and Play compatible.
Code 35The device you are trying to install cannot be properly configured for use. Update the BIOS.
Code 36The device Interrupt request (IRQ) parameters need reconfiguration.Consult the documentation that came with the hardware and use the BIOS setup utility to change IRQ settings.
Code 37Windows is unable to initialize a hardware device driver.Remove the device from Device Manager, and restart the computer to reinstall and reinitialize the device.

If this error code reappears, obtain the latest drivers from the HP Drivers and Downloads page.
Code 38The driver cannot be installed because an instance of the driver already exists in system memory.Obtain the latest drivers from the HP Drivers and Downloads page, and restart the computer.
Code 39Windows cannot find the driver for a device.Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.

If this error code reappears, obtain the latest drivers from the HP Drivers and Downloads page.
Code 40 Windows cannot access a device because the service key information is incorrect, or does not exist in the registry.Remove the device from Device Manager and restart the computer to reinstall and reinitialize the device.

Perform a system recovery to recover the registry if the error persists.
Code 41 Windows successfully loaded the device driver for this hardware, but cannot find the hardware device.Follow the steps below:

  1. Remove the device name from Device Manager and shut down the computer.
  2. Remove the device from the computer and then reconnect it to confirm that the connection is good.
  3. Turn on the computer.


If this error code reappears, be sure that the device is compatible with the version of Windows that you are using.
Code 42The device driver cannot be installed because an instance of the device already exists in system memory.Restart the computer.

If this error code reappears, use the Troubleshooting tab to help correct this problem. If you have two devices of the same type and manufacturer, remove one them from the computer.
Code 43 A device driver is not functioning properly.Restart the computer.

If this error code reappears, use the Troubleshooting tab to help correct this problem.
Code 44An accidental device shutdown has occurred.Restart the computer.

If this error code reappears, use the Troubleshooting tab to help correct this problem.
Code 45Currently, this hardware device is not connected to the computer.This error code requires no action.
Code 46 The device is not accessible because the operating system is in the process of shutting down. The device should work properly when you restart the computer.This error code requires no action.
Code 47The device is not accessible because it is in safe removal mode, but has not yet been uninstalled.Unplug the device from the computer, and then plug it back in.

Restart the computer to reactivate the device.
Code 48The software for this device has been blocked from starting because it is known to have problems with Windows.Update the driver or replace the device with compatible hardware.
Code 49 Windows cannot start new a device because the registry size limit is exceeded.Use the Device Manager to uninstall any unwanted or unused devices, and then restart the computer. You may need to perform a system recovery to restore the registry.
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