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HP and Compaq Desktop PCs - Device Manager Information for Windows 7

This document applies to HP and Compaq computers with Windows 7.
This document contains information about using the Device Manager utility and information about Device Manager error codes.
 note:
You must be logged on as an administrator to change settings in Device Manager. Other users can view settings, but not make changes.
Figure : Device Manager
Device Manager stores information about the devices installed in the computer. Device Manager stores the following information:
  • Whether the device is working properly and error messages if not
  • Installed hardware devices
  • IRQ ports
  • Memory allocations
  • Device driver
Device Manager allows you to make changes to the device properties.
How to open Device Manager and view error codes
To view error codes in Device Manager, follow these steps:
  1. Click Start , and enter Device Manager into the Search field. Click Device Manager.
    Figure : Opening Device Manager
  2. Double-click a device type (for example, double-click Display adapters) to see the devices in that category.
  3. Right-click the device you want, and then click Properties.
    Figure : Click Properties
  4. Click the General tab to view the device status.
    Figure : Example of a normal status message
    Figure : Example of a message for a status problem
     note:
    If the device is experiencing a problem, the type of problem is displayed. You might also see a problem code and number with a suggested solution. For more information on error codes and what they mean, refer to Detailed error code information.
    You can also submit a Windows Error Report to Microsoft by clicking Check for solutions, if that button is present.
Understanding the Device Manager tabs
In Device Manager click the plus sign (+) next to a device type, right-click a specific device, and then select Properties. A properties window is displayed.
Some of the common tabs are shown below. The properties window for some devices might include other tabs not listed here, including:
  • Details
  • Volumes
  • Advanced
Click the heading or the accompanying plus (+) sign to expand the information:
  • The scroll box at the bottom contains a Conflicting device list. If a conflict is occurring, an error code is displayed on this list.
  • When Windows successfully detects a device, the Use automatic settings check box is selected. The device should function correctly.
  • If the resource settings for a device are based on Basic Configuration <n> (where <n> is any number from 0000 to 0009), it is possible to change the configuration by selecting a different Resource setting from the list.
  • If the settings for the device are not based on a Basic Configuration, click the Change Setting button and manually adjust the resource values. For example, to edit the Input/Output Range setting, use these steps:
    1. Click the Use automatic settings check box to clear it.
    2. Click the Change Setting button.
    3. Click the appropriate I/O range for the device.
    4. Save the new setting and click OK to exit.
    5. Restart the computer for the new settings to be recognized.
Device Manager toolbar
Use the Device Manager toolbar to perform various actions to the devices you have on your system. See the table below for an explanation of the toolbar buttons.
Figure : Device manager toolbar buttons
Symbol
Definition
Shows/Hides Console Tree of the Device Manager on the left side of window.
Displays the properties of the selected device.
Opens the Device Manager (Microsoft Management Console) Help files.
Displays the Device Manager Actions pane, which shows you possible actions to correct a device problem.
Scans for hardware changes.
Updates driver software for that device, if available.
Uninstalls this device from your system.
Disables this device on your system.
Rolling back a driver
If a device fails after updating the driver, roll back to the previously installed driver.
  1. Open Device Manager.
  2. Double-click the device type. For example, double-click Display adapters to see the devices in that category.
  3. Right-click the device you want, and then click Properties.
  4. Click the Driver tab.
  5. Click the Roll Back Driver button, and follow the directions on the screen.
     note:
    If the Roll Back Driver button cannot be selected, the driver has not been updated and cannot be rolled back.
    Figure : Rolling back the driver
    Rolling back the driver
Device Manager error symbols
Device Manager uses the following symbols to provide information about a particular error condition with a specific system device:
Symbol
Definition
Indicates the device is in a problem state. A device in a problem state can be functioning. A problem code explaining the problem is displayed for the device.
Indicates a disabled device. A disabled device is a device that is physically present in the system, consuming resources, but does not have a protected-mode driver loaded.
On a device resource in Computer properties, indicates that Use Automatic Settings is not selected for the device and that it was manually selected. It does not indicate a problem or a disabled device state.
This indicates that an exact (device-specific) driver is not available, and that a compatible driver has been installed.
Detailed error code information
In the table below, several errors can be resolved by updating the driver. For driver, BIOS patches, and software updates, use the HP driver and software downloads search page. Search for the Model Number for your computer to get a list of the available updates.
 note:
To remove a device from device manager, right-click the device name from the list and then click Uninstall.
You can also update a driver from the Driver tab of a device Properties page. Double-click the device name to get to the Properties page in Device Manager, click the Driver tab, and then click the Update Driver button.

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