Windows 10 does not recognize usb. What to do if the computer does not see USB devices? If the device works on another PC or you do not have the opportunity to check it


Every computer and flash drive user has at least once found himself in a situation where the flash drive failed. That is, it is impossible to view the information that is stored on it. The flash drive does not work, the computer does not see the flash drive, files are either not written, or are not transferred from the flash drive, or it shows a discrepancy in the storage capacity of the storage device.

But, first things first.


The computer does not see the flash drive


In fact, there are a lot of problems that affect the computer’s detection of a flash drive - even the version of the operating system itself.

And so, you inserted a flash drive into the computer, it is not detected. How does this manifest itself?


The computer tells you what you need " insert disk" Even when you did.


The computer says that the disk needs to be formatted because it is not formatted;


A data error has occurred;


The computer freezes when a flash drive is inserted;


The device is not recognized.


Now you will read a short instruction on how to solve the problem when the computer does not see the flash drive. But this does not mean that this instruction will help you 100%. If one method does not help, move on to another until the problem goes away.


Let's go!


The first thing you can do is check whether the utility sees " disk management» your flash drive. To do this, run this very utility:


Click Start → Execute (Win+R)→ enter → diskmgmt.msc→ press Enter. OR


Control panel → Administration → Computer management → Disk management.




In the disk management window, pay attention to what happens when you connect and disconnect a flash drive to the computer - does the disk disappear and appear again, or not?


The best option is when the computer sees the flash drive, and all the partitions on it are in the “ OK" If this is the case, then do the following: right-click on it and select “ make the section active" You may need to assign a letter to the partition.


Well, in principle, this will be enough for the computer to see the flash drive.


Well, what if suddenly this utility displays the message “ Unknown" or " Not initialized", as well as one partition in the state " Not distributed", this will mean that the flash drive is damaged. Therefore, the computer does not see the flash drive. You need to perform data recovery (more on this later).



If you connect your flash drive through an extension cord or USB hub, then try connecting it directly. Also try connecting to all available USB ports. Next, as an option, you can turn off and restart the computer, disconnect other devices from the computer (well, except for the keyboard and mouse, of course), and then restart the computer. In this case, if the flash drive is detected and starts working, then the problem is obviously in the power supply to the USB ports, there is simply not enough power. There is only one piece of advice - replace the power supply with a more powerful one.


Option to remove old drivers


Use this option when the computer does not see the flash drive and writes “ Insert disc", provided that the flash drive is already inserted. This problem and more can be caused by old drivers that are available in Windows. For example, when you connect a flash drive to your computer, your PC turns off or reboots.


The reason is that Windows installs drivers for flash drives the first time you connect them to the port, and when you unplug the flash drive, the drivers remain in the system and do not go anywhere. Then you connect a new flash drive, a conflict arises, which is caused by the reaction of Windows when trying to use the old driver that was installed when connecting the first flash drive.


How to remove old drivers?


First, turn off the computer. Disconnect all memory devices and peripherals and accessories from it.


Turn on your computer.


Download the utility DriveCleanup.


We copy, depending on your version of Windows, a 32-bit or 64-bit version drivecleanup.exe to daddy C:\Windows\System32.


Launch the command line as administrator (right mouse button on the menu “ Start") and enter drivecleanup.exe . Click Enter and watch as the computer deletes all drivers and entries.




After the removal is complete, simply restart your computer, insert a new USB flash drive and Windows will install new drivers on it.


USB device not recognized


When you connect a flash drive, printer or any other device that connects via USB in Windows 7 and Windows 8.1, and you see an error, an unidentified device - read these instructions and we will try to figure it out.


There are actually many reasons why Windows cannot recognize a USB device, and therefore there are also quite a few solutions.


The device is not recognized. What to do?


If you encounter a problem when you insert a USB flash drive and a message appears that you have connected an unidentified device when connecting any device via USB, make sure that the USB itself is in good condition. This will save you and me time. To make sure the USB plug is working properly, you can try connecting it to another computer or laptop. If everything also does not work, then the problem is in the device itself. If it works, read on.


This method is for those cases where the device previously worked without comment. Everything was determined.


We disconnect our USB device, which the computer cannot recognize, disconnect all devices that we do not need at the moment, and connect a device that is not detected to the rear panel of the system unit and see if the problem is solved.


Correction of the message " Device not recognized" through Device Manager and USB Drivers.


Let's go to device Manager(press Win + R keys) enter devmgmt.msc what field do we click on? Enter.



The connected device will most likely be in the list USB controllers or Other devices(and be called " Unknown device»).




If it is in the list with other devices and you are connected to the Internet, you can right-click on it and press the button update drivers.




If an unidentified device is still in the list USB controllers, then right-click on it, and on the Driver tab, click the button roll back or Delete.




Another option is in the USB properties in the “ Power management"Uncheck the box" Allow this device to turn off to save power».



You can also try for all devices that are in the " USB controllers» do the following:


Click " Update driver».


Click search for drivers on this computer.


Select a driver from the list of already installed drivers.


In the list you will see that there is a driver that is compatible with the device. Select it and click " Next" The driver will be installed, after which the computer may recognize the device.


In Windows 8.1, this problem occurs with external hard drives and flash drives that operate from a USB 3.0 port.


This problem can be solved in the menu for managing the parameters of the laptop power supply circuits.


To do this, go to the Windows Control Panel in the Power Options section, select the power plan you are using and click “Change advanced power settings.” In the USB settings, you need to disable temporarily disabling USB ports.


The next time you connect, say, a USB flash drive to your computer or some device with a USB interface, the “USB device not recognized” error may appear on your screen instead of the desired result.

This error appears as a message that appears on the right side of the Start taskbar and states the following information:

One of the USB devices connected to this computer is not working properly and Windows cannot recognize it. For help resolving this issue, click this message.

This message appears immediately after connecting a USB device to your computer. This problem is quite serious since many devices nowadays use a USB interface.

In most cases, the “USB device not recognized” error appears due to the following reasons:

  • Incorrect USB port.
  • The Windows operating system lacks certain drivers, which is why there is a conflict between the OS.
  • Unstable USB controller.
  • USB has gone into temporary shutdown.
  • Outdated drivers.

To check the functionality of a device with a USB interface, simply connect it to another PC. If it functions normally there and no “USB device not recognized” error appears, then the problem definitely lies in your computer and its settings.

Solving the “USB device not recognized” error for Windows 7, 8, 8.1, 10

If your computer does not recognize the USB device, but easily connects to other computers, then the problem in the form of the “USB device not recognized” error lies in your PC. In this case, try the following steps:

Method #1 Uninstall the USB driver through Device Manager

  • Right-click on Start and select Device Manager.
  • Expand the USB Controllers category and find the USB that your Windows cannot detect.
  • Right-click on it and select "Delete".
  • Restart your PC and try connecting the USB device.

Method No. 2 Updating the USB driver

For this purpose, you can use either third-party software that will update your driver automatically, or go to the website of the manufacturer of your device and download the necessary drivers from there, or simply update the drivers through Device Manager, which we will now consider:

  • Go all the way to the undetectable USB in the Task Manager as shown in the previous method.
  • Right-click on it and select Update Drivers.
  • Wait until the system determines the need for an update. If this occurs, wait until the update process is complete, and then try connecting the USB device to the port again and see if the “USB device not recognized” error appears.

Method #3 Changing the USB Settings

  • Right-click on Start and select Control Panel.
  • Select "Power Options" and then select the "High Performance" plan.
  • Click on the "Configure Power Plan" button next to your power plan.
  • Next, click on “Change advanced power settings.”
  • Expand the USB Settings directory.
  • Insert the following parameters into it:
    • On battery: Prohibited
    • From the network: Prohibited
  • Click "Apply" and restart your computer.

We hope the above methods helped you resolve the “USB device not recognized” error.

It’s not working correctly” on its own. They know their computer down to the smallest detail, so questions about how to fix this or that error do not arise. But for inexperienced users this issue is much more difficult. Even advice from the Internet does not help some, because knowledge and experience are too little.

Problem

But it doesn't matter. Any basic PC error can be resolved quickly. To do this, you need to carefully study the instructions and follow step-by-step advice from experts.

Today's problem is when one of them doesn't work properly. Most often, you will notice this text in the lower right corner of your desktop. Sometimes a special window appears notifying you about this problem.

Prerequisites

Most often, the error occurs when connecting any device via USB. This is an ordinary flash drive, a phone, a printer, etc. The problem occurs both on the early version of Windows 7 and on the later version of Windows 7. However, your USB may be version 2.0 or 2.0. In general, the essence of the issue does not change.

Reasons

The USB connection error can be caused by a number of reasons. There really are a lot of them. Moreover, they are not always typical. It happens that the fault lies squarely and entirely with the user who miraculously removed the drivers or confused the system. There are also flaws on the part of the manufacturers of these devices. Low-quality Chinese flash drives are especially susceptible to this problem.

Trust but verify

So, you saw a similar error on your screen. To avoid unnecessary nerves and wasting a lot of time, it is better to immediately check the device that you connect to the port. As mentioned earlier, not all manufacturers are so conscientious. Many people create a product just to sell it. This is where system errors arise.

If you bought a new mouse, keyboard or flash drive, immediately check that it is working properly before sinning on the USB interface. There are two ways to do this:

  1. If you have a second PC or laptop, simply connect the new device to it. If everything is fine on another system, then most likely the problem is in the computer.
  2. Take a working device (old mouse, second flash drive, etc.) and insert it into the same port. If the same notification appears, then the problem really is with the connector.

There are a couple of unspoken ways. They don’t always give a clear picture of what’s happening, but you can try them just in case. So, we take the device that gives the error, disconnect it from the PC and turn off the system along with the plug in the socket. Now you need to hold down the start button on the computer so that the remaining electrical charges leave the motherboard.

Now turn on the PC and connect the USB device when the system boots completely. The option is not the best, but sometimes after it everything really starts to work.

And for those who finally want to make sure that the port is faulty, you can simply disconnect all USB that are on the interface panel. It happens that port overload can produce a similar error. If you disconnect equipment that is currently unnecessary, install the flash drive in the rear panel.

Software methods

Sometimes the problem “One of the connected USB devices is not working correctly” cannot be corrected by castling alone. We'll have to dig inside the system. If all the previous methods did not give you results, let's try to update the “firewood”.

To do this, look for “Device Manager”. We do it through the command line: hold down Win + R on the keyboard and enter devmgmt.msc in the field. You can go to “My Computer,” right-click anywhere in the window and select “Properties.” A window with PC parameters will open in front of us, and in the left column you will find the desired section.

So, in the “Device Manager” we select the line “USB Controllers”, all USB equipment connected to the system is shown here. There will be a line “Other devices”, this is where our unknown device will be located. Click on its name and try “Update drivers”. We are waiting for the system to download the necessary files via the Internet, and perhaps the flash drive will “come to its senses” and start working.

Exclamation mark

It may be that there is a yellow exclamation mark next to this “Unknown Device”. In this case, we try to roll back the drivers. Click on it and go to “Properties”. Here you need to find the “firewood” tab and the “Roll Back” button. It may be inaccessible to you and highlighted in gray. Then select “Delete”.

Now you need to return to the “Device Manager” window and select the “Action” section at the top, and update the hardware configuration in it. These steps may fix your problem.

The exclamation point may appear for another reason. To do this, you need to go to the properties of the equipment, which has acquired names like Generic USB Hub, USB Root Controller and USB Root Hub. In the window that appears, you need to select “Power management” and uncheck the first line. This will prevent the equipment from turning off to save electricity.

Common mistakes and solutions

As mentioned earlier, the error “One of the connected USB devices is not working properly” is individual and depends on many factors. Above we looked at the most common reasons. Now let’s briefly try to describe what problems other users have encountered.

This error often occurs when connecting a printer. Usually caused by incorrect installation of “firewood”. Therefore, you can simply remove them and carefully reinstall them again.

Many problems arise due to mechanical damage. Let's assume that a cable with a micro-USB connector on one side and a USB connector on the other can be broken or crushed in the middle. This also significantly affects its performance and synchronization with the PC.

Another interesting problem that is becoming less and less common now could be incompatibility. Some devices do not support the 2.0 or newer 3.0 standard. Then it happens that when you connect a phone or any other device via USB, you will see this message again. In general, if such a problem arises, then it is better to think about changing the motherboard, since the interface standard will continue to change, and there will be even more problems.

Laptop problems

In this case we are faced with USB 3.0 connection problems. Due to the imperfections of this interface revision, users have to get out in different ways. A solution has been found. The laptop's power plan needed to be adjusted.

To do this, you could go to the standard settings for this parameter or to the proprietary software that some laptop manufacturers provide. In Windows, select the power plan that is currently in use, then go to additional settings. And according to the familiar scheme, we prohibit disabling ports to save energy.

Conclusions

If suddenly you cannot connect your phone, external hard drive, flash drive and other devices via USB, you don’t need to get upset right away. Firstly, failure of one port out of ten in the system is common. Trying to simply use a different connector is as easy as shelling pears. Secondly, even if nothing worked for you in terms of software, you can try reinstalling Windows.

Of course, reinstalling the OS is not a panacea for all problems and the process is quite difficult, especially for those who have never encountered it. However, even he can help you.

Perhaps your micro-USB connector is not working due to an actual controller failure. It cannot be replaced on the motherboard. This means either buying a new motherboard, or, as an option, purchasing an external controller with a PCI interface.

USB device not recognized - a standard Windows error not related to the type of USB device. Use the step-by-step instructions “USB device not recognized.”

It often happens when a Windows user gets sudden errors, one of them is USB device not recognized. In this situation, it does not matter which USB device is inserted into the computer, Windows may not detect it. Even if you change the port, the error remains the same!

Sometimes, after changing ports or simply while working on the computer, devices disappear, and after reconnecting, when we remove them and put them back, we get the error “USB device not recognized in Windows 7/8/10” (it also appears in Windows XP and server versions). Even after changing the port, everything is in vain.

What they usually try, but doesn’t help:

  • They reinstall drivers if they are available, but the USB device is not recognized
  • Trying to configure USB ports in the registry
  • Remove the device from Device Manager and restart the computer

There is a simpler solution that helps identify a USB device. To fix the problem where the USB device is not recognized, completely turn off the computer from power and then turn it on again after a few minutes. Turn off your PC from the network. disconnect the USB device and power cable from the computer unit, leave the PC for a while - the error in recognizing USB devices should disappear.

What causes the error when the USB device is not recognized?

Electricity is supplied through the power cable to the UPS (computer or laptop power supply), sometimes failures occur in the microcircuit and power circuits, resulting in residual voltage appearing on the USB ports, which causes errors. Completely disconnecting the PC from the power supply to reset errors when the device cannot be identified.

Additional instructions for fixing the error “USB device not recognized by Windows”

  1. Try installing another device into the same port.
  2. Check to see if the power saving feature is enabled. Go to “Device Manager”, right-click on the USB controller and check in “properties” whether the “Allow turning off the device to save power” checkbox is activated. Check all USB controllers, and then restart the PC. Check functionality.
  3. Only some OXION products require driver installation. Most mice and keyboards are plug-and-play. If your device required driver installation, check that it is correct. Go to Device Manager on your PC, find “Unidentified Device” and go to the “Drivers” section. Update the driver by selecting “Search on the Internet” or “Install from file”. Restart your PC and check if the USB device is recognized in Windows.
  4. If the above does not help, try removing all USB controllers in Device Manager, which will reset the ports to their original factory settings. Restart your computer, during boot Windows will search for hardware devices and display USB controllers again - everything should work.
  5. You can try disabling the USB ports through the BIOS, just make sure you have a Tochscreen or com/pc2 port, because if you disable the USB you will not be able to enter the BIOS again.
  6. There is another method associated with a conflict between previously installed USB devices. To see hidden USB devices, for example a previously installed gamepad, printer or modem, enter the following commands at the command line:
set DEVMGR_SHOW_DETAILS=1 set DEVMGR_SHOW_NONPRESENT_DEVICES=1 start devmgmt.msc

After such operations, in the device manager, configure “View” – “Show hidden devices”.

Check if there are devices with an error - a yellow triangle.

See if there are any unidentified devices?

Delete everything unnecessary by clicking the right mouse button - delete.

We hope this instruction helped solve the problem of device identification. All the described errors are not caused by OXION products, but are technical shortcomings of Microsoft engineers and computer hardware. The instructions are intended to help our customers. If the OXION device still does not work, take advantage of the warranty - exchange or repair the product.