In the search box on the taskbar, enter device manager, then select Device Manager. Select a category to see names of devices, then right-click (or press and hold) the one you’d like to update. Select Search automatically for updated driver software. Get drivers and downloads for your Dell PowerEdge T40. Download and install the latest drivers, firmware and software.
Before you begin
Driver updates for Windows 10, along with many devices, such as network adapters, monitors, printers, and video cards, are automatically downloaded and installed through Windows Update. You probably already have the most recent drivers, but if you'd like to manually update or reinstall a driver, here's how:
Update the device driver
In the search box on the taskbar, enter device manager, then select Device Manager.
Select a category to see names of devices, then right-click (or press and hold) the one you’d like to update.
Select Search automatically for updated driver software.
Select Update Driver.
If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions.
Reinstall the device driver
In the search box on the taskbar, enter device manager, then select Device Manager.
Right-click (or press and hold) the name of the device, and select Uninstall.
Restart your PC.
Windows will attempt to reinstall the driver.
More help
If you can't see the desktop and instead see a blue, black, or blank screen, see Troubleshoot blue screen errors or Troubleshoot black or blank screen errors.
-->A miniport driver with a WDM lower edge (an NDIS-WDM miniport driver) follows the WDM rule that specifies that a WDM header file must be included in the driver's source files. An NDIS-WDM miniport driver requires a WDM header file to call kernel-mode routines on its lower edge. Typically, NDIS miniport drivers should just call functions that NDIS provides. This restriction is shown by the way NDIS wraps around NDIS miniport drivers in the figure in the NDIS Drivers section. Although typical NDIS miniport drivers are not called WDM drivers, they indirectly follow WDM rules because NDIS itself follows WDM rules.
The following diagram shows an NDIS-WDM miniport driver that interfaces with the USB driver stack by using a WDM lower edge.
The following list describes the components that the preceding diagram shows:
IPX/SPX Compatible and TCP/IP
NDIS protocol drivers that transmit packets by using underlying miniport drivers.
NDIS
The Ndis.sys driver that provides a standard interface between layered network drivers.
NDIS-WDM Miniport Driver for USB
An NDIS-WDM miniport driver that interfaces with the USB driver stack.
USB Client Drivers
Other vendor-supplied USB client drivers.
USB Class Interface
USB Routines and I/O requests that USB client drivers can use to interface with the USB driver stack.
Drivers Edge Products Port Devices Chart
USB Driver Stack
Driver stack for USB devices. For more information, see USB Driver Stack Architecture.