Applies To

Windows Server 2008, Windows Server 2008 R2, Windows 7



Windows Operating System

Event ID:







The driver \Driver\tunnel failed to load for the device ROOT\*ISATAP\0000


The driver \Driver\WUDFRd failed to load for the device USB\VID_041E&PID_4152\A83E0C080002FA9D


"The driver \Driver\SaiNtBus failed to load for the device Root\SAITEK_MAGIC_BUS\0000."



A Plug and Play device driver on your system is failing to load due to a device driver or device malfunction. This event happens randomly at times due to latency issues associated at system boot up.

For more information, see article 974720 in the Microsoft Knowledge Base.

User Action

Check with your device manufacturer to determine if there is an updated device driver available and if Windows 7 or Windows Server 2008 is supported.

If you cannot identify the device driver that is causing this event, use Device Manager to troubleshoot device errors. For more information, see the following resources:

Open Device Manager:

Update a driver for hardware that isn’t working properly:

If Windows can't find a driver for your device

Occasionally, the Windows operating system might not be able to find a driver for your device. If this happens, check the manufacturer's website for a driver or update for the device, or try installing any software that came with the device. For more information, see What to do when a device isn't installed properly

If Windows can’t find information about your device in Device Stage

Device Stage is a new feature in Windows 7 that displays details about a device and tasks you can perform with that device. When you connect a device that is compatible with Device Stage to your computer, Device Stage will automatically open. Occasionally, Device Stage might open but not display any or all tasks and information about the device. Following are some reasons why this might happen, and what to do if it does:

Device Stage might need your permission to download information about your device. Check to see if there is a message in Device Stage that tells you updated information is available, and then follow the instructions.

Your computer might not be connected to the Internet. Device Stage cannot download information about your device if you are offline. Try connecting the device later when you are online.

Device Stage might be trying to download information about your device. Wait a few minutes to see if Device Stage is able to find the information, especially if this is the first time you have connected the device to your computer. Device Stage will keep trying to download information about your device, even if the location where that information is stored is busy. If you do not want to wait, try connecting the device again later.

If you connect a device to your computer that reportedly supports Device Stage, but only AutoPlay opens, check with the manufacturer of the device. Find out if there are any software or firmware updates available that will make the device work with Device Stage, and confirm that the device actually supports Device Stage.

Additional Resources