If your external USB device is not recognized by Windows 10, and meet Unknown USB Device (Device Descriptor Request Failed) error in Device Manager, use solutions here to troubleshoot and fix the error.
As you have noticed, the USB Device in Device Manager has a yellow triangle on it:
The error can be caused by hardware issues. So first, follow below simple instructions to do the troubleshooting.
1. Try the device on a different USB port. This will figure out if problem is caused by a broken port.
2. Connect the device to another PC. This will figure out if the external device has problem.
Under the list of available devices, locate the device that shows the ‘ unknown USB device set address failed ’ or ‘ unknown USB device port reset failed ’ error (you will notice a small yellow triangle next to the icon). Right-click on the device to reveal the context menu. Select the Uninstall device from the context menu. If you are fed up with the problem of device descriptor request failed, then uninstall and reinstall the USB device driver from the Windows Device Manager to rectify the issue. Type Device Manager in the Windows search box and click on it to launch the Device Manager. The Unknown USB device (device descriptor request failed) in Windows Device Manager on HP and Lenovo would stop your USB devices like an Android mobile, flash drive or pen drive from being properly detected for use in Windows 10, 8 or 7, but we finally resolved the USB not recognized problem for you. Method 2: I suggest you to update USB drivers in the Device Manager and check if it helps. Press Windows Key + R Key. Then type “devmgmt.msc” without the quotes and hit on Enter Key. Expand Universal Serial Bus Controllers and try to update all the drivers in the list. Right click on the drivers and click on Update Diver Software.
If there is no problem with the USB port and the device, read on and try the following methods. You can start at the top of the list and work your way down.
Method 1: Remove the Power Supply
Method 2: Uninstall the USB Driver in Device Manager
Method 3 : Update the USB Driver
Method 4: Disable Fast Startup
Method 5: Change the USB Selective Suspend Settings
Method 1: Remove the Power Supply
This method will fix the problem magically if the problem is caused by Power Supply.
1. Remove the Power Supply plug from PC.
2. Re-plug in the Power Supply.
3. Restart the PC and connect the device to the USB port.
Method 2: Uninstall the USB Driver in Device Manager
Follow these steps:
1. Open Device Manager and expand category Universal Serial Bus Controllers and locate the USB device which is not being recognized by Windows.
2. Right-click on the device and select Uninstall from the context menu.
3. After finishing the uninstallation, restart your PC then Windows will reinstall the device automatically.
Method 3 : Update the USB Driver
The problem can be caused by faulty USB driver. In this case, updating driver would fix the problem.
If you’re not confident playing around with drivers manually, you can do it automatically with Driver Easy.
Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing.
You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks (and you get full support and a 30-day money back guarantee):
1. Downloadand install Driver Easy.
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2. Run Driver Easy and clickScan Nowbutton. Driver Easy will then scan your computer and detect any problem drivers.
3. Click theUpdate button next to a flagged USB driver to automatically download and install the correct version of this driver (you can do this with the FREE version). Or clickUpdate All to automatically download and install the correct version ofallthe drivers that are missing or out of date on your system (this requires the Pro version – you’ll be prompted to upgrade when you click Update All).
Method 4: Disable Fast Startup
If Windows is booting quickly,the external device may not be detected before the boot is completed, then the problem will occur. In this case, disabling the fast boot option in Power Options can resolve the problem.
1. Press Win+R (Windows logo key and R key) at the same time. A Run dialog box will appear.
2. Type control in the run box and click OK button. This is to open Control Panel.
3. View by Large Icons and click on Power Options.
4. Select Choose what the power buttons do in left pane.
5. Click on Change settings that are corrently unavailable.
6. Under Shutdown settings, uncheck the box next to Turn on fast startup (recommended). Then click on Save changes button.
7. Restart your PC and see if the problem resolves. Note your PC will boot a little slower.
Method 5: Change the USB Selective Suspend Settings
Follow these steps:
1. In Power Options,click on Show additional plans. (If you tried Method 2, you must know how to go to Power Options. If not, go back to Method 2 and refer the steps to open Power Options.)
2. Click Change settings that are currently unavailable.
3. Select High performance and click on Change plan settings.
4. Click on Change advanced power settings.
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5. Click on Change settings that are currently unavailable.
6. Locate USB settings and expand it.
Hp Unknown Device Windows 10
7. Expand USB selective suspend setting. Disable both On battery and Plugged in settings.
8. Click Apply button and restart your computer.
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After using methods in this post, you must resolve the Device Descriptor Request Failed error for Windows 10.