Hi, I just bought a Dell laptop and resinstalled Windows 7 on it. Now I have an unknown device ‘ACPI/SMO8810’. What driver can I download to fix it? A.Here is the download link to solve your ACPI/SMO8810 Unknown Device issue: ST Microelectronics Free Fall Data Protection Driver - Dell ACPI SMO8810 (38606 downloads), Dell dl link. The laptop has been installed with clean installation of Windows 10. Therefore, there is no recovery point. When disabling the 'Intel(R) USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)' the 'Unknown USB Device (Device Descriptor Request Failed' disappears but placing USB, the USB is not found. Jul 05, 2017 You’ll see information about Unknown Devices in the Device Manager. To open it on Windows 10, 8.1, or 8, right-click in the bottom-left corner of the screen or press Windows Key + X and select Device Manager. On Windows 7, press Windows Key + R, type devmgmt.msc into the Run dialog, and press Enter.

  • The device does not have a device driver: When a device driver for a device is not available, Device Manager displays the device as Unknown Device and puts it in the Other devices branch. This is very common with universal serial bus (USB) and Institute of Electrical and Electronics Engineering (IEEE) 1394 composite devices.
  • On Windows 10, a device driver is an essential piece of code, which allows the system to interact with a specific hardware (such as graphics card, storage driver, network adapter, Bluetooth, etc.

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

  1. In the search box on the taskbar, enter device manager, then select Device Manager.

  2. Select a category to see names of devices, then right-click (or press and hold) the one you’d like to update.

  3. Select Search automatically for updated driver software.

  4. Select Update Driver.

  5. If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions.

E6520

Dell Unknown Device Windows 10

Reinstall the device driver

  1. In the search box on the taskbar, enter device manager, then select Device Manager.

  2. Right-click (or press and hold) the name of the device, and select Uninstall.

  3. Restart your PC.

  4. 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.

On a recent Windows 7 deployment project, I was working on integrating the device drivers for a Dell Latitude E6400 laptop and came across the dreaded ‘unknown device’. First, let me take a step back and explain the approach I use when it comes to managing device drivers. I usually try to keep driver packages to a minimum since I typically work with customers that have locations spread all over the place, connected by very slow links and no local distribution points (think Nomad).

One of the first things I do when working on the drivers for a new hardware model is apply the base Windows 7 image without any extra drivers. This allows me to keep the driver package as small as possible by using the Microsoft drivers that are included with Windows 7 when possible. I usually make an exception for certain drivers – network drivers being one of them, where I use the drivers provided by the OEM (in this case, Dell).

After applying my base Windows 7 image, I see two device bangs – one for Broadcom USH and the other for the ‘Unknown device’:

Dell Unknown Device Driver Windows 10 Download Free

Dell Unknown Device Driver Windows 10

Dell Unknown Device Driver Windows 10 Microsoft

Now usually identifying devices on Dell systems is pretty easy since they are pretty good about their driver downloads on their support site. However, every now and then there may be a driver that you need that is buried in one of the Rxxxxx packs and filed under a category that you would not guess in a million years. One method of locating the driver is to download the driver CAB file (look under the Systems Management section), expand the CAB file and let plug and play figure it out.

Dell Unknown Device Driver Windows 10

This method works just fine for the Broadcom USH device shown above and will work with ‘most’ other devices that show up with missing drivers. The exception in this case is the ‘Unknown device’. The reason for this is because the driver for this device is not included in the CAB file. Part of the reason is that Dell does not have a Windows 7 driver for this device (USBVID_413C&PID_8149&REV_0100). However, if you look under the Windows Vista device drivers under the Network section, you will see a device listed called Wireless 410 UWB – that is the driver that you want to download and use. Once the device driver is loaded, you will see it identified as Dell Wireless 410 Wireless USB Device and Dell Wireless 410 Wireless USB Host Wire Adapter.