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Device Manager Troubleshooting

On a Windows Vista-based computer, the Microsoft ISATAP adapter appears with a yellow exclamation mark next to it in Device Manager, and you also receive an error message

On a Windows Vista-based computer, the Microsoft ISATAP adapter appears with a yellow exclamation mark (!) next to it in Device Manager. Additionally, when you open the properties dialog box for the device, you receive an error message that resembles the following:

Windows cannot load driver (Code 31)
Device Manager indicates that a Japanese PS/2 keyboard is a Standard 101/102-Key keyboard or a Microsoft Natural PS/2 keyboard after you upgrade a computer to Windows XP or to Windows Vista

After you upgrade a computer that uses a Japanese PS/2 Keyboard (106/109 Key) keyboard to Microsoft Windows XP or to Windows Vista, Device Manager indicates that the keyboard is a Standard 101/102-Key keyboard or a Microsoft Natural PS/2 keyboard. The keyboard functions as a 106 key keyboard but appears in Device Manager as a 101 key keyboard.
The IRQ for a device appears as a negative number in Device Manager on a computer that is running Windows Vista

On a computer that is running Windows Vista, you view resources by type in Device Manager. When you expand Interrupt request, the interrupt request (IRQ) for one or more of the devices that are listed may appear as a negative number.
Device Manager displays an exclamation point next to a device that is connected to a PCI multiport serial adapter on a Windows Vista-based computer

Consider the following scenario. You have a PCI multiport serial adapter from Connect Tech, Inc. installed on a Windows Vista-based computer. You have a device connected to this PCI multiport serial adapter. In this scenario, a black exclamation point (!) on a yellow field appears next to the device in Device Manager.
The Disable button on the Driver tab of the parent USB host controller is not available in Device Manager after you connect a USB keyboard to a Windows Vista-based computer

You connect a USB keyboard to a Windows Vista-based computer. Then, you view the devices on the computer in Device Manager. When you view the Driver tab of the parent USB host controller, you notice that you do not have an option to disable the device. The Disable button on the Driver tab of the parent USB host controller appears dimmed, and it is not available.
Device Manager does not show updated processor information on a Windows Vista-based computer

After you physically replace the processor (CPU) with a similar model of processor on a Windows Vista-based computer, the old processor information may still appear in Device Manager under Processors. However, the updated processor information does correctly appear in the Welcome Center in System and Maintenance in Control Panel.
Error message when you view a WAN Miniport (SSTP) network adapter or a WAN Miniport (NDISWANBH) network adapter in Device Manager in Windows Vista: "Error code 39"

You install Windows Vista Service Pack 1 (SP1) on a computer that is running the release version of Windows Vista. When you uninstall Windows Vista SP1, an exclamation point (!) on a yellow field appears next to a WAN Miniport (SSTP) network adapter or next to a WAN Miniport (NDISWANBH) network adapter in Device Manager. When you view the properties of the device, you receive the following error message:

Error code 39.
An IEEE 1394 device cannot unload from Device Manager on a Windows Vista-based computer when you unplug the IEEE 1394 device from an IEEE 1394 standard-based external hub

Consider the following scenario:
  • You connect an IEEE 1394 standard-based camera to an IEEE 1394 standard-based external hub.
  • You connect the IEEE 1394 standard-based external hub to an IEEE 1394 standard-based port on a computer that is running Windows Vista.
In this scenario, Device Manager in Windows Vista displays the camera device as expected. However, when you unplug the camera cable, the camera device does not unload successfully in Device Manager.
A Bluetooth device no longer works correctly, and you receive a Code 43 error in Device Manager when you wake a Windows Vista-based computer from sleep

You may occasionally experience the following symptoms when you wake a Windows Vista-based computer from sleep:
  • A Bluetooth device no longer works correctly.
  • When you view the Bluetooth device in Device Manager, an exclamation mark in a yellow circle is displayed for the device. When you view the properties of the device, the status for the device reports Code 43. This status code indicates that Windows has stopped the device because the device has reported problems.
This problem occurs on a system in which a Bluetooth device is connected through a universal serial bus (USB) connection.

Note: The Bluetooth device may be an external USB Bluetooth transceiver, or it may be integrated into the system by using an internal USB hub. For example, a portable computer may use an internal USB hub to provide external USB ports and to connect to integrated USB-based devices.
A network adapter is automatically reinstalled after you uninstall the network adapter in Device Manager on a Windows Vista-based computer

After you uninstall a network adapter in the Device Manager on a Windows Vista-based computer, you receive the following message in the notification area at the far right of the taskbar:

Installing device driver software

Then, the network adapter is automatically reinstalled.
An exclamation mark (!) may appear next to a USB device in Device Manager after you resume a Windows Vista-based portable computer from standby (S3)

Consider the following scenario:
  • You are running a Windows Vista-based portable computer from a docking station.
  • The computer has a USB device connected to it.
  • You put the computer into standby (S3).
  • You resume the computer from standby.
In this scenario, a yellow exclamation mark (!) may appear next to the USB device in Device Manager. This problem may occur if the status of the docked portable computer is changed when the system is in standby.
A USB composite device does not work after you disable and then enable the device in Device Manager on a computer that is running Windows Vista

On a computer that is running Windows Vista, you use Device Manager to disable and then enable any child device of a USB composite device. When you do this, the child device may not start correctly. Additionally, you may receive an error message in Device Manager that resembles the following:

This device cannot start (Code 10)

This problem may occur if the USB composite device is plugged into the USB root hub of the host computer.
The version information of an SMSC infrared receiver appears as garbled text or as "Not Available" when you view it in Device Manager in Windows Vista

When you use Device Manager to view the properties of an SMSC infrared receiver, the version information appears as garbled text. Or, "Not Available" appears instead of the version information.

This problem occurs if you install the SMSC Infrared Data Association (IrDA) driver that is on the Vista OEM Supplement DVD.