Why does the "USB Device Descriptor Request Failed" error occur?In general, the situation when an error message appears when inserting a flash drive into a USB port is not at all unique. The user is given a message stating that “unknown USB device”. This issue is called USB Device Descriptor Request Failure. When you first insert a flash drive into a USB port, the necessary drivers are automatically searched for, after which the device is recognized by the computer within a few seconds. If the system cannot find the necessary drivers automatically, an error message is displayed. “Device descriptor request failed” or error code 43 indicates that the problem is in the OS software. How to deal with such a situation and what you need to know in order to cope with the error that has arisen on your own, we will learn from today’s episode.
The main causes of the error “USB device descriptor request failed on Windows 10”
The USB device descriptor request failure error can occur not only due to an OS failure, but also as a result of damage to the USB input or the flash drive itself. Experts report that the causes of error code 43 are the following factors:
— Malfunction of the USB device or computer connector. Chinese-quality flash drives, which are underpriced, often fail.
— A virus that contributed to the failure of system files.
— The registry is damaged, which could have occurred as a result of installing or updating the operating system.
— Aging of drivers, as well as their damage or conflict situations.
There are more than enough reasons for the occurrence of the error in question. To eliminate it, you need to determine the source of the error and take appropriate action.
How to troubleshoot the error “USB device descriptor request failed” and ways to solve the problem with error “code 43”.
Sometimes, to resolve the error, it is enough to simply clean the USB port so that the computer recognizes the flash drive. In each specific case, the solution to the problem must be approached individually. If the flash drive is not detected by the computer in one port, then you should plug it into another USB connector of your computer or laptop.
I Equipment check
The first step in troubleshooting is to check the physical condition of the USB device, as well as its contacts and cable. Finding such a fault is not difficult on a computer, but with a laptop the situation is more complicated. The check is carried out by removing the cover from the system unit and conducting a visual inspection.
Plugs or connectors may become dirty, dusty, or oxidized, causing poor contact. Fault checking should begin exclusively at the physical level. The procedure at the physical level includes the following manipulations:
1. Cleaning contacts.
2. Connecting ports to other connectors.
3. Check ports on another computer.
Only after a check has been carried out at the physical level and it has been determined that the USB ports are in working order, you can resort to a research procedure at the software level. If Windows 10 OS again does not read the data, giving the same error with code 43, then you should check the status of the drivers. Let's look at how to check the status of drivers on Windows 10 in detail.
II Checking the status of drivers and updating them
1. Often the cause of the “USB device descriptor request failure” error is a driver violation. The second step towards fixing the problem begins with the need to update the Windows 10 OS drivers. Not many people know how to do this. The procedure is performed by performing the following manipulations:
Open "Device Manager" through "Start" and "Control Panel".
2. In the “Device Manager” window that opens, you need to find the section called “USB Controllers”. The “Device Manager” section displays a list of all equipment connected to the computer.
3. In the “USB Controllers” list, you need to find the “GenericUSBHub” item, as well as “USB Root Hub” and “Composite USB Device”. A number of certain manipulations should be carried out with each of these devices. They include carrying out the driver update procedure. To do this, on each element, right-click to open a submenu, and then select “Update drivers”.
4. After this, a window will open asking you to choose one of two options: “automatically search for updated drivers” or “Search on this computer.”
You need to select the second option, as shown in the screenshot above. After this, a window will open in which you need to click the “Next” button.
5. After this, a manual search for drivers will begin. If the drivers need updating, the system will display a corresponding message. This will begin updating them, and after the installation is complete, the system will have to detect an unidentified USB device.
Rarely, the system cannot find the drivers on its own, so the problem can be resolved by downloading them from the official website. The above steps should be carried out for each item, and then check the serviceability of the USB device.
This is interesting! If you decide to download drivers manually, you should download them exclusively from the official Windows website. Downloading drivers from unverified resources may result in your computer becoming infected with viruses.
III Check for Power Consumption and Relieve Static Voltage
If the drivers are updated or do not require this procedure, then you can fix the “USB device descriptor request failure” error by checking the power consumption of the USB ports. To check the power consumption of USB ports, you should perform the following steps:
Open the “Power” tab, in which select the “USB Root Hub” section. In this section, you should make sure that the power consumption does not exceed the permissible parameters.
To enter the USB Root Hub section, you need to open Device Manager.
In this section, go to any equipment in the “USB Controllers” section, then right-click to open a submenu.
In this submenu, select the “Properties” item, after which the “Power Management” tab opens.
In this tab, uncheck the box next to “Allow the computer to turn off this device to save power.” After this, it is recommended to restart the computer and check that there is no error when inserting the flash drive into the USB port.
To relieve the static (residual) voltage that remains on the USB ports when you remove the flash drive in an unsafe way, you need to perform the following manipulations:
— Turn off your computer or laptop. After turning off the laptop, you need to remove the battery, and from the PC, unplug its plug from the socket.
— Now you need to press the power button and hold it for a few minutes.
— After keeping your device de-energized for 1 minute, you can start it.
- After this, the proper functioning of the ports is checked, as well as the disappearance of the “code 43” error.
— After performing such actions, the error should be eliminated.
What to do if the problem persists...?
What should you do if the problem with starting the flash drive still persists after the above steps? There are a number of other actions that will help solve the problem, but they should only be performed in the presence of an experienced computer technician.
— Reset BIOS settings. If you reset the settings in BIOS incorrectly, the consequences can be fatal, so it is better to entrust the procedure to an experienced specialist.
— Updating or reinstalling Windows 10 OS. Even a beginner can do this if you follow the appropriate instructions.
— If the above steps did not help fix the problem, then there is only one way left - replacing the USB ports.
Concluding today's post - USB device descriptor request failure, it can be noted that any problem can be solved if you find the right approach to fix it. You always need to start by looking for reasons, so go for it, because now the instructions are in your hands.
When working with external devices, problems with USB ports often occur when connecting. Windows then displays: “USB device not recognized” or “Invalid device descriptor.” Such notifications do not provide a specific answer to the question of where exactly the problem occurred, so you need to check all possible options.
USB device is not recognized - what to do
The problem must be looked for by elimination:
- Check the operation of the connected peripherals with other PCs/laptops/tablets.
- If the connected peripherals work normally, look for a problem in the software or hardware of the PC.
Hardware
Important! Some users were helped by completely de-energizing the PC. To do this, you need to turn off the computer and remove the battery (+3V) from the motherboard for a few minutes.
Driver setup
Check settings:
If the OS does not find a driver on the Internet in the “Other Devices” section, you can search manually:
The information we need will be displayed in the VEN (Vendor) and DEV (Device) parameters.
If the peripheral in “USB Controllers” is displayed with a yellow exclamation mark icon:
Important! Some users have found it helpful to remove outdated entries from previously connected equipment. Read about it below.
To delete records of all peripherals connected up to this point:
- Disconnect all USB peripherals from the computer (except the mouse and keyboard).
- RMB on Start → Command Prompt (Administrator).
- Type the command and press Enter: set devmgr_show_nonpresent_devices=1
- Then type into the command line and press Enter: start devmgmt.msc
- Computer Management will open. Go to Device Manager → View → Show hidden devices.
- One by one, in all categories, remove translucent icons. Do not remove dark ones.
- Go to the USB Controllers section and completely remove all USB root hubs. When notified “Delete driver”, put a marker (to erase the installed drivers along with the mentions). Dismiss the "Restart PC" message and remove all USB hubs.
- Restart your PC and wait until the drivers are installed and configured.
- Then insert an unidentified peripheral into the USB port and check its operation.
Setting up the power supply
The problem is common among laptop users. After connecting the drive via USB 3.0, an error occurs - “Unknown device”. This is due to the power-saving feature of laptops, which turns off power to unused ports during idle periods. To disable the feature, go to:
- Control Panel → Power Options → Select the scheme your laptop uses → Set up power plan.
- In the “USB Options” tab → The option to temporarily disable the USB port, change from “Allowed” to “Prohibited”.
- Save the changes and connect the peripherals again. If necessary, reboot the system.
Important! After doing all of the above, is the error still there? Dig into the BIOS settings. They help fix the problem: resetting the BIOS settings to default, flashing the BIOS firmware to the latest version (see the motherboard manufacturer's website), software disabling/connecting USB 2.0 and 3.0 in the BIOS settings.
If the advice in the article did not help, write to us. Describe the problem in detail, we will try to figure it out and fix the problem together.
Handle request failures are a common issue on modern versions of Windows 8 and above. Usually, if you click on the hardware properties, code 43 is displayed. All this is a manifestation of problems in the USB connection, not only of the tablet, but also of any other devices.
Before manipulating the software part, you need to make sure that there are no problems at the physical level. Despite the fact that most often the problem is in the drivers, you need to know for sure that the equipment is working properly. You need to pay attention to:
- The USB-hub cable may be broken, install the device directly;
- Check the port to see if there is a lot of dust in it or if it has oxidized;
- Connect the device directly (for a desktop PC this is the rear panel), there may be a problem with the front output;
- The chipset is in general working order, connect the equipment to another port.
If no mechanical damage has been detected, you need to use software methods to resolve the problem of failure to request a USB device descriptor.
Updating USB port drivers
The described method turns out to be effective for most users, not only with this problem, but also with any other similar problem. The main task of the method is to check the functionality of the port drivers and replace them. You can achieve your goal:
- Click Start and right-click on “Computer”, then “Properties”;
- Follow the link “Device Manager”;
- Expand the “USB Controllers” list;
- For all items named “USB Root Hub” and “Multiple USB Device”, perform the following steps one by one;
- Double-click to open the element and go to the “Driver” tab;
- Click on “Update” and then “Search for drivers...”;
- Now click “Select from list...”;
- Select the found element and run the installation.
Do the same for each item and the Windows 10 USB device descriptor request failure problem will no longer occur on your PC. You can understand that everything went according to plan when your tablet connection disappears and restarts as already recognized.
Read also: How to set up a tablet on Android?
Also, if this method did not have an effect on the situation, download the original drivers from the website (especially important for laptops with USB 3.0). Next, you need to install them according to the same scheme, replacing the default drivers with new ones. The same must be done if you have an unidentified device. To determine the appropriate software you need:
- Double click on the device;
- Go to the “Details” tab;
- Set the value to “Equipment ID”;
- Copy the VEN and DEV parameter;
- Paste the line into the search on devid.info;
- It’s better to get the name of the driver and go to the official website, but you can download it from here.
Setting Energy Consumption
There are several key sources here that can cause the "unknown USB device device descriptor request failed" issue. One of them is a power glitch, where the device requires more power than Windows assigns to the device. Another option is to automatically turn off an inactive device to save energy. With any of the options, you may encounter a problem of a similar nature; they need to be solved one by one until the malfunction is eliminated.
In case of incorrect operation of power saving, you can eliminate the current situation:
- From the "Device Manager" panel, go to the "USB Controllers" section;
- For the “USB Root Hub” and “Multiple USB Device” elements, each separately, you need:
- Double click to open the equipment menu;
- Go to the “Power Management” tab;
- Uncheck the "Allow disconnecting..." checkbox.
The situation may change after restarting Windows.
Read also: What to do if your tablet freezes?
Then you should check whether the port is receiving enough power from the computer, which may indirectly indicate a hardware problem. You can find out:
- Double click on the same elements as in the previous methods;
- The “Power” tab and check that “Available power” exceeds the “Power required” column.
Even if everything is in order on this tab, there are frequent failures when the information is not even displayed in the corresponding menu, so you should perform a simple and at the same time effective action - turn off the computer's power.
- Remove all USB peripherals from the connectors;
- Turn off your computer completely;
- Disconnect from power;
- Hold the computer's start button for about 10 seconds, it is better to leave it in this position for a couple of minutes (to get rid of the residual charge);
- Turn on the system and connect the devices.
Installing drivers for the chipset
If the problem does not stem from broken port drivers, then the cause is at a higher level, in the entire chipset. Accordingly, we need to fight it based on this. Most often it appears as a result of replacing or updating the OS. Standard software may cause Windows 8.1, 10 USB device descriptor request to fail.
You shouldn’t hope that everything will install itself and be fine; if a problem arises, especially for laptops, go to the manufacturer’s official website. Most likely, there you will find the “Support” item, and there will be the necessary driver for your PC model. Install it, you may have to initially remove programs like Intel Chipset Driver.
Such settings should help solve the problem of USB device descriptor failure and similar problems, after which the tablet will be able to synchronize correctly with the computer.
If you still have questions on the topic “Problem connecting the tablet to the computer: USB device descriptor request failed,” you can ask them in the comments
Good afternoon, dear readers, today we will look at such an error as device descriptor request failure code 43 in Windows 8.1 - 10. It can be observed in the device manager in USB controllers, or devices connected through them, be it scanners, external hard drives, com wires. Below we read why it is and how to fix it, after spending a few minutes on this, I welcome all questions in the comments.
USB device descriptor request failed code 43
Let's imagine a situation, you are going to make a bootable USB flash drive with Windows, insert the USB into your computer and find that in the device manager it is seen as an Unknown USB device, when viewing the details you see the message Device descriptor request failure code 43. With such an error there may be and connected phones, tablets or players.
What we are told by the error is a failure to request a device descriptor or reset a port and error code 43, here I think you don’t need to be a mega Microsoft specialist or a psychic, everything is clear that there are problems with the physical connection of your device via the USB port.
First of all, you need to try to reconnect the device to another port to eliminate the possibility of physical damage to the port. If you are connecting via a USB hub, this is a device with many connectors, then unplug it and plug it directly into the port. If everything is the same, then read the solution options below.
Update USB device drivers
As I wrote above, I have an exclamation mark on my flash drive, which is not good.
If your flash drive was working normally before and didn’t give any problems before, then do the following. We go to the device manager, if you don’t know how, then press Win+R and enter devmgmt.msc, or even easier, right-click on Start and select the desired item from the context menu.
Next, open the USB Controllers section and for each of the Generic USB Hub, USB Root Hub and Composite USB devices, right-click and select Update Drivers from the context menu
In 99 percent, you will see only one compatible driver, select it and click next.
Do not forget that this action must be performed for all devices from the list. This procedure can help you identify your Unknown Device and identify it.
In Windows 10, if the USB device is not recognized and only when connected to USB 3.0, replacing the standard driver installed by the OS itself will help you. Extensible Intel USB 3.0 host controller for the driver that is available on the official website of the laptop or motherboard manufacturer. You can also try the method described earlier (updating drivers) for this device in Device Manager. In general, update all drivers at once
USB Power Saving Options
Open the device manager again, for all devices
- Generic USB Hub
- USB root hub
- Composite USB device
Do the following, right-click on them and select Properties > Power Management and uncheck Allow the computer to turn off this device to save power.
Additional methods for solving problem code 43
- Remove the problematic USB devices, turn off the computer (by shutting down, it’s better to hold Shift while clicking “Shutdown” to turn it off completely).
- Unplug it from the outlet.
- Press and hold the power button for 5-10 seconds (yes, with the computer unplugged), release.
- Plug your computer into the network and simply turn it on as usual.
- Connect the USB device again.
For laptops in which the battery is removed, all steps will be the same, except that in step 2 you will add: remove the battery from the laptop.
Windows driver update
As I wrote above, update all kinds of drivers for
- Intel Chipset Driver
- Intel Management Engine Interface
- Various Firmware utilities specific for laptops
- ACPI Driver
- Sometimes, separate USB drivers for third-party controllers on the motherboard.
If, using the method I indicated above, you do not want to trust the collection of drivers, then visit the manufacturer’s websites and download from there everything you need to solve the problem device descriptor request failed code 43.
And some funny balls :)
