Windows 7 does not recognize the mouse. What to do if the USB device is not recognized? When the problem is a broken physical interface

If you are a Windows user, you may encounter a problem with the USB device on your PC. You may see this error when connecting Pendrive, webcam, printer or flash drives. This can happen for many reasons. Thanks to this article, you will learn how to fix: “ The laptop does not recognize USB devices".

This problem exists in all modern versions such as Windows 10, 8.1, 8 and 7. Actually there is various reasons this error.

Why doesn't the USB port recognize devices?

All PC errors and problems have some causes. Here's what causes this problem −

Unstable or damaged USB controllers.
Outdated motherboard drive.
Lack of important Windows updates or any other services.
Damaged USB drives.
Incorrect power management settings.

Fix “does not recognize usb device” in Windows:

Every problem has a solution. Fortunately, there are many ways to fix problems. USB device on Windows. Let's try the most effective methods.

Method 1: Restart your computer.

One of the simplest and quick ways eliminating " can't recognize usb device" is to reboot the PC. Before starting your computer, unplug it for 1 minute. This will reset the USB hub on your motherboard. If the problem occurs on the laptop, you should remove the laptop battery for 3-4 minutes and reinsert it. Now start your computer and see if the problem is still there.

Method 2: Find an undetected driver.

Scanning for undetected drivers is another one great choice to diagnose and repair errors " Windows 7,8,10 does not recognize usb device" by using device manager. He has access to all internal and external devices, which electrify your system.

Go to your control panel.
Select Hardware and Sound.
Click Device Manager.
Open the action menu.
Now click on “Scan for hardware changes”.
Windows scans your hardware.
Close the Manager and all Control Panel windows.
Now check if your computer finds the driver by re-opening device Manager.

Method 4: Update drivers.

Sometimes updating device drivers will fix the problem in Windows. You can do this in different ways.

Check the USB driver manufacturer's website. Find updated drivers. Download and install them.

Method 5: Managing USB Hub Power

Sometimes, to correct a mistake " Windows does not recognize the USB device“, you need to do the following.

Open Device Manager again.
Click "USB Controllers".
Now click right click mouse on a USB root hub.
Select Properties.
Go to the Power Management tab.
Now, uncheck the Allow the computer to turn off this device to save power.
Now click "OK".

Method 6: Removing an unknown USB drive

If other methods do not work, you should remove unknown devices to resolve the error " computer does not recognize usb devices»

First, open Run by pressing Windows logo + R.
Enter devmgmt.msc and click "OK".
Now click on “USB controllers”.
Connect a device that is not recognized by the PC port.
Find the icon called Unknown device USB(port failure).
Right-click on it and select Delete.
Restart your computer.

Method 7: Reinstall USB Drivers

Sometimes windows 10 does not recognize usb device, due to corrupted USB drivers, then you should try this.

Problem: an error appears when connecting a device to a USB port

USB device not recognized One of the USB devices connected to this computer is not working properly, and Windows cannot recognize it.

This error can occur when connecting any device: flash drive, external hard drive, Wi-Fi adapter, smartphone, printer, scanner.

First of all, you need to try to understand whether the device is working properly. If possible, connect it to another computer. If the device works correctly on another computer, read further about possible reasons errors.

Causes of error and solutions

1. Poor contact

This often happens when connecting old phones with old data cables, because... contacts on connectors and plugs oxidize over time and simply become dirty.

Tip: clean the gadget connector and the connecting cable plug.

2. The device is connected via a poor-quality (or too long) cable or via a USB extension cable

Most often with cheap cables(usually they gray, thin and without ferrite filters) do not work well Hewlett-Packard printers. And in offices, they also love to use long cables.

Tip: use only high-quality and original USB cables. If possible, connect the device directly to the port; avoid using extension cords.

3. The additional power cable for the hard drive is not connected

An external 2.5-inch hard drive can work in half the cases without connecting an additional device. nutrition. However, to ensure trouble-free operation It is recommended to connect both plugs.

Tip: connect additional power.

Remember that 3.5-inch external hard drives work with a power supply!

4. The device is connected to the port on the front panel

This item only applies to desktop computers, because There is no difference in ports on laptops.

Devices that are particularly sensitive to connection quality and port voltage stability do not perform well in the front ports.

Tip: Connect the device to the back of your computer and check its operation.

5. Too many USB devices connected to the computer at the same time

This can cause both a voltage drop on the ports and conflicts between devices.

Advice: turn off all devices. Restart your computer. Connect only the problematic gadget to the port on the rear panel and check its functionality.

6. Compatibility or device driver issue

This sometimes happens when connecting old mobile phones(drivers for which are only available for Windows XP) to modern computers.

Adviсe:

Make sure that the device is designed to work with the current OS. Download the driver from the official website and install it on the system. On Windows 7-10 you can try automatic search drivers().
Prohibit temporary disabling of the USB port.
Prohibit the USB device from being disconnected.

How to prevent a port from being temporarily disabled

Open:

Control Panel
Power supply
Setting up the power plan (current profile)
Change additional options nutrition.

In the window that opens Power supply:

Expand the item USB Settings
IN The option to temporarily disable the USB port select value Forbidden
Click OK:

How to prevent your device from turning off to save energy

Open device Manager (win+r, devmgmt.msc, enter)
Expand the section USB controllers
Call properties USB root hub or Generic USB Hub:

Uncheck Allow this device to turn off to save power
Click OK:

Today, USB is one of the most common data transfer protocols between a computer and a connected device. Therefore, it is very unpleasant when the system does not see devices connected to the corresponding connector. Especially many problems arise if interaction with a keyboard or mouse occurs on a PC via USB. Let's figure out what factors cause this problem and determine methods to eliminate it.

In this article we will not discuss problems with the visibility of the device associated with its inoperability, because in this case this equipment should be replaced or repaired. The article will concern those cases when the problem is caused by malfunctions or incorrect settings system or PC hardware. In fact, there can be many reasons for such a malfunction, and each of them has its own solution algorithm. We'll talk about specific ways to fix this problem below.

Method 1: Microsoft Utility

In many cases, a specially created utility from Microsoft can solve the problem with the visibility of USB devices.

Method 2: "Device Manager"

Sometimes an issue with USB hardware visibility can be resolved simply by updating the configuration in "Device Manager".

Click "Start". Click "Control Panel".

Come in "System and Security".

Now open "Device Manager" by clicking on the corresponding inscription in the block "System".

The interface will launch "Device Manager". The problematic device in the list can either be displayed in a block "Other devices", or absent altogether. In the first case, click on the block name.

A list of devices will open. The problematic equipment may be indicated there either under its real name or listed as "USB Mass Storage Device". Click on its name with the right mouse button ( RMB) and select "Update configuration...".

Device search will be activated.

After it is completed and the configuration is updated, it is quite possible that the system will begin to interact normally with the problematic device.

If necessary equipment doesn't show up at all "Device Manager", click on the menu item "Action" and then select "Update configuration...". After this, a procedure similar to that described just above will occur.

Method 3: Update or reinstall drivers

If the computer does not see only a certain USB device, then there is a possibility that the problem is due to incorrect installation of drivers. In this case, they need to be reinstalled or updated.

If this option did not help, then there is another method.

Click in "Device Manager" by device name RMB. Select "Properties".

Go to the tab "Driver".

Click on the button "Roll back". If it is not active, click "Delete".

Next, you should indicate your intentions by pressing the button "OK" in the dialog box that appears.

The procedure for removing the selected driver will be performed. Next click on horizontal menu windows by position "Action". Select from the list "Update configuration...".

Now the device name should appear in the window again "Device Manager". You can check its functionality.

If the system was unable to find the appropriate drivers or the problem was not solved after installing them, then you can use the services of specialized ones. They are good because they will find matches on the Internet for all devices connected to the PC and perform automatic installation.

Method 4: Setting up USB controllers

Another option that can help solve the problem under study is setting up USB controllers. It is still performed in the same place, that is, in "Device Manager".

If this does not help, then you can reinstall the drivers for the group elements listed above "USB Controllers", using the same methods that were described in the presentation Method 3.

Method 5: Troubleshooting the port

It is possible that your computer does not see USB devices simply because its corresponding port is faulty. In order to find out if this is so, if your desktop PC or laptop has several USB ports, try connecting the equipment through a different connector. If this time the connection is successful, it means that the problem is in the port.

To resolve this problem, you need to open the system unit and see if it is connected this port to the motherboard. If it is not connected, then connect. If there was mechanical damage or another failure of the connector, then in this case it is necessary to replace it with a working version.

Method 6: Relieving Static Stress

Alternatively, you can try to remove static voltage from the motherboard and other PC components, which can also cause the problem we are describing.

There is also a possibility that the computer does not see the equipment due to the fact that many USB devices are already connected to it. The system simply cannot cope with such a load. In this case, we recommend disconnecting all other devices and connecting the problematic equipment to the back system unit if there is a corresponding connector there. Perhaps this recommendation will help solve the problem.

Method 7: Disk Management

Problem with the visibility of the connected USB device, in in this case exclusively flash drive or external hard drive, can be solved using the built-in tool of the system "Disk Management".

Click Win+R. Enter in the field of the shell that appears:
Apply by pressing "OK".

The tool interface starts "Disk Management". You need to monitor whether the name of the flash drive appears and disappears in the window when it is connected to the computer and disconnected. If nothing new happens visually at all, then this method will not work for you and you need to solve the problem using other methods. If changes occur in the list of connected drives when attaching new media, then you can try to solve the problem with visibility using this tool. If opposite the name disk device there will be an inscription "Not distributed", then click on it RMB. Next, select "Create a simple volume...".

Will start "Master of Creation" simple volume…» . Click "Next".

Then a window will open where you need to specify the volume size. Since in our case we need the volume size to be equal to the size of the entire disk, then click here too "Next" without making changes.

The next window requires you to assign a drive letter. In the corresponding field, select a character that differs from those letters that are already assigned to other drives in the system. Click "Next".

The following settings window opens. Here in the field "Volume Label" You can enter a name that will be assigned to the current volume. Although, this is not necessary, since you can leave the default name. Click "Next".

The next window will provide a summary of all the data entered in the previous steps. To complete the procedure, just click on the button "Ready".

After this, the volume name and status will appear opposite the media name "Fixed". Next click on it RMB and select “Make partition active”.

Now the computer should see the flash drive or external hard drive. If this does not happen, then restart your PC.

There are situations when when opening a tool "Disk Management", the volume that belongs to the flash drive already has the status "Good". In this case, create new volume it is not necessary, but it is necessary to perform only those manipulations that are described starting from point 8.

If, when opening the tool "Disk Management" you see that the disk is not initialized and has a single volume that is not allocated, this means that, most likely, this drive physically damaged.

Method 8: Setting up the power supply

You can solve the problem with the visibility of USB devices by making some manipulations in the power settings. This method especially often helps when using laptops that interact with connected equipment via the USB 3.0 protocol.

Go to "Control Panel" and then to the section "System and Security". We discussed how to do this during analysis. Method 2. Go here by position "Power supply".

In the window that opens, find the current power plan. There should be an active radio button next to its name. Click on the position "Setting up a power plan" near the named position.

In the shell that appears, click “Change advanced settings...”.

In the window that appears, click "USB Settings".

Click on the inscription "Temporary shutdown option...".

Will open specified parameter. If the value is specified there "Allowed", then you should change it. To do this, click on the indicated inscription.

From the drop-down list, select "Forbidden" and then click "Apply" And "OK".

Now you can check whether USB devices will work on this PC or whether you need to move on to other ways to solve the problem.

Method 9: Eliminating the virus

We should not exclude the possibility that the problem with the visibility of USB devices arose as a consequence viral infection computer. The fact is that some viruses specifically block USB ports so that they cannot be detected using antivirus utility connected from a flash drive. But what to do in this situation, because if the standard antivirus missed malicious code, then it is now of little use, but connect external scanner Is it not working due to the above reason?

In this case, you can make hard check disk antivirus utility from another computer or use a LiveCD. There are quite a few programs designed for these purposes, and each of them has its own nuances of operation and management. But there is no point in dwelling on each of them in detail, since for the most part they have an intuitive clear interface. The main thing when detecting a virus is to follow the prompts that the utility displays. In addition, our website has a separate article dedicated to such programs.

There are quite a few ways to restore the visibility of USB devices in Windows 7, but this does not mean that all of them will be effective in your particular case. Often you have to try many options before you find suitable way solutions to the problem that has arisen.

These days, a computer has several USB ports to which you can connect a keyboard, mouse, and other USB devices. You can also connect a flash drive or external HDD. After connecting the flash drive/USB drive, you may receive an error message like this: “USB device not recognized.” Into this Windows time, shows a message that the USB device is not recognized as pop-up notifications in the panel area Windows tasks. Windows shows an error message due to an unknown operating problem Windows systems, due to which the result is that the USB is not recognized and an error appears. What would you do in this case?

The error says:

On Windows 8, 8.1 and Windows 10 –
Latest USB device is not connected to this computer correctly and Windows cannot recognize it.

or, in Windows 7

The USB device is not recognized, or 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.

When the error occurs, Windows cannot show the USB storage device in the 'My Computer' section in the File Explorer area and if you can take a look at the Device Manager in Windows, then you will find a yellow triangular alert icon near this device, which is invisible in Windows. The yellow triangular logo helps you locate the device in the Device Manager list. The photo below shows if you have never seen this error.

The error is very common and has been discussed by everyone through web portals and forums for years. No matter which Windows OS and which version of OS (it could be Windows 7 OS, Windows 8 OS, Windows 8.1 or Windows 10) you are using, you can certainly get the USB not recognized message more than once in your life. inserting USB flash drive or external USB drive to your PC. Actually, there is no exact and specific reason for getting this error message. So, we have to identify the problem of such error and try to fix it manually step by step for troubleshooting. Not always USB removal device is unsafe and may cause problems, there may also be another problem related to windows drivers or similar to those that cause the device not to be recognized by the system. Most of From time to time, users using USB and virtual Windows operating systems receive an error message, but there are quite a few cases that I myself had when I connected a USB flash drive directly in the My Computer window.

How to resolve and fix the 'USB device not recognized' error in Windows 10, Windows 8.1 and Windows 7

There are probably several reasons that cause Windows to not display the device and it is not recognized causing an error, so of course there are several possible solutions. Here, follow the guide to get rid of this error. This doesn't mean you won't get the same error soon. Since there are many reasons for causing external drive its not recognition, so you can get the same Windows errors any time you plug a USB device into a Windows USB port.

Step 1: Disconnect the USB device and plug it back into the same port

Once you receive the error notification, simply remove the USB device and reinsert it. Try the same method two or three times. If you are lucky, you may be able to get rid of the Windows error that is preventing you from accessing a specific USB device. If this tool works for you, then it may be a problem loading the device driver in Windows at the time of introduction external USB to your PC.

Step 2: Disconnect the USB drive and reinsert it into another USB port

Try another USB port while you keep getting the error message. There may be a problem with the USB port. The USB port can get into mischief or develop mechanical problems over time. Therefore, try to use separate USB port to solve the problem, if this helps, then it is probably a problem with the USB port. Replace the USB port immediately so that you do not receive any errors in the near future due to the same reason.

Step 3: Restart your computer to fix the problem

When you start turning on your PC, all programs, drivers, processes, services start automatically in background. But, if any important process or the driver does not load at startup, your computer may behave erratically and may result in a “USB device not recognized” error.

Step 4: Windows Device Manager Search Problems and USB Driver Problems

This step is the most important. Majority Windows users Those who receive this error can fix it using Windows Device Manager. In Device Manager, you can find all the connected devices of your PC, including processors, printers, hard drives(internal and external), etc. So, how to find and fix the problem of recognizing the connected external USB device using Device Manager? Follow the steps as described below:

1. Press Windows+R and open the Run window, in the window run the following command devmgmt.msc to open the device manager in the Windows window.

When the scan is completed, the program will automatically load the usb driver. If the USB device is not recognized and fixed, then, of course, this is a problem in Windows driver synchronization.

A USB device that is not recognized by Windows is marked as ‘Unknown Device’. You can update drivers in Windows by right clicking in context menu. You need to select the unknown or unrecognized device from the list in Windows Device Manager and right-click on it. Select “Update Driver”.

After a successful update, you should no longer receive an error message with USB devices. If the error persists, you can disable the unknown device driver for a while and give it a chance to bypass the error. But, if the message still appears, it is better to uninstall the device driver and reinstall latest version drivers from the Internet.

Now select root USB hub- Properties and in the ‘Power Management’ tab you will find the option “Allow the device to turn off to save power”. Uncheck the box and see if it helps or not.

Step 5: Disable USB - Selectively Pause Setup

In your computer's control panel there is various options nutrition. Select “Change Settings Plan” of your running plans and click on the “Change advanced power settings” option. Now scroll down to USB settings>> USB Selective Suspend >> Install and force it to shut down. Laptop users should select the battery option and then make it disable.

Step 6: Change the registry to 'enhancedpowermanagementenabled' to fix the USB device issue

Many Windows 10 PC users may encounter the same problem. In addition, when connecting the device using USB cable, the device remains disconnected. When you connect a USB device to a PC using a USB cable, the device receives charge from the PC. In this case, for Windows 10 users, when you connect the device to the USB port, the device gets charged, but the PC does not show the device in File Explorer. Sometimes, users receive a “USB not recognized” error message. The procedure to resolve the problem is described below.

Open Device Manager and go to the properties of the USB device that shows errors.
Switch to the ‘Details’ tab and select the path to the device instance from the drop-down menu.
Be aware of the corresponding instance ID.

Now open Registry Editor and navigate to the following path:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\(Device Instance Path)\Device Parameters

On the right side of the device parameter, change the value of ‘EnhancedPowerManagementEnabled’ to ‘0’.

Restart your computer to receive the error message has been fixed.

Step 7: Remove existing hidden devices

Windows Device Manager does not show all devices in the list. It only shows devices connected to the PC. Devices that were previously installed and not connected to the PC right now do not appear in the Device Manager list. For example, a USB scanner after installation on a PC and if it is no longer turned on, it will not appear in the device manager list. However, some hidden devices may create problems for modern devices USB and as a result an error message will appear.

Now, let's see how to show hidden devices and remove them to avoid any conflict between them.

Open command line as administrator and run the following commands:

Set DEVMGR_SHOW_DETAILS=1 set DEVMGR_SHOW_NONPRESENT_DEVICES=1 start devmgmt.msc

After Device Manager has loaded successfully, upper area navigation select view >> show hidden devices.

Now, find and manually define the list unused drivers and delete them. You can check unknown devices, universal controllers serial bus USB, etc.

New devices can now work perfectly after removing old devices and drivers. Thus, we hope that you will find a solution to fix “USB not recognized” in Windows.

Step 8: Try the USB port to troubleshoot the application

If the methods described above did not work and your device still does not work for you, you should try the ‘fix’ apps from Microsoft. There is also one more useful tool from Microsoft to do this kind of work. The instrument known as ‘ Fix It‘. Download links are given below.

DriverFinder other third party application, which can fix Windows devices that are not recognized and an error occurs on your PC. Simply install DriverFinder software and scan all applications installed on your computer. This useful application finds all new drivers for your PC. This way, all USB devices including printers will be correctly recognized by your PC, laptop, etc.

Step 9: Other Possible Remedies

In the above steps, I have mentioned everything possible solutions“USB device not recognized” problems for Windows 10, 8.1, 7 users. If the problem occurs due to software or problems with the operating system, then, of course, following the methods described above, you can solve the problem.

If the problem persists, then there will most likely be a hardware problem. Either the USB devices are damaged or USB port may not work properly. So, first connect another USB device to this port to make sure there is nothing wrong with the port. Then connect the USB device to another computer and check whether it works or not. If you still get the same error again, then serious problem in a USB stick. You can try a different USB connector.
Connect the USB flash drive to another PC and remove it if the problem occurs as a result of the disk being suddenly ejected.
Turn off your PC and disconnect power cable completely for 5 minutes. This motherboard USB hub reset may help resolve the driver issue. In case you are a laptop user, then remove the battery for at least a few minutes to reset the USB hub on the motherboard.
Update your BIOS and try to fix problems in Windows.

I hope this article will help you fix the error in Windows device The USB is not recognized and you should now be able to use your USB device normally. Most USB device not recognized errors can be resolved by one of the above solutions. If you have any other solutions, or a USB problem that isn't solved by these tips, please leave a comment!

It happens that when you turn on your computer, you suddenly notice that the mouse does not respond to your movements. This can happen with wired usb, as well as with a wireless mouse. Usually, the reasons for this are similar cases and are already known to many specialists. Therefore, we will look at all the most popular reasons why the computer does not see the mouse and will present in the article several solutions that should definitely help you.

First of all, your task is to determine whether your reasons for a non-working mouse are primitive.

Ways to solve a problem with a USB mouse

If the problem occurs with a mouse that is connected via a USB port and the computer does not see it when turned on:

Disconnect the mouse's USB connector from the computer panel and turn off the computer. Disconnect it from the network and press the power button on the computer for a few seconds - this way you will completely clear the computer modules of charges, primarily the motherboard.
Now turn on your computer and connect your mouse after Windows startup. The mouse should work.

Now let's fix the problem with the USB mouse using . This method is appropriate when the system does not recognize such a device in the device manager of your PC. To open the device manager, right-click on the “My Computer” icon and select the appropriate item or through the command line WIN + R and enter the command “Devmgmt.msc” and press Enter.

You will find the device in the body of the list, it will look like “USB Controllers” or “Other Devices” (“Unknown Device”). If it looks like this in your list unidentified device, then you need to right-click on it and select “Update drivers”. In this case, the system automatically finds on the network necessary drivers and installs them without your intervention. After this installation, you can use a working mouse.

If there is an exclamation mark next to our mouse in the task manager:

Physical damage due to which the computer does not see the mouse

If used carelessly, even a USB connector can become unusable. Check the contacts on the port and in the mouse connector; they may be damaged, bent, or worn out. Although the USB connector is very durable, it is still active use it could break, the contacts could also loosen. In this case, you need to contact the service for USB replacement ports on the motherboard or purchase a new one.

The mouse cable may also suffer from any kind of damage that leads to broken wires inside the cable. There are cases where they are chewed by domestic animals. In this case, the system will notify you with the message “Unable to connect to the USB port” or. The USB cable has 5 cores, which are not so easy to reconnect together. It's probably easiest to buy here new mouse. If the model is expensive, the service can save it.

In addition to the wire, damage can also occur in the mouse body itself.

Main faults inside the case:

The surface of the lens is dirty and scratched.
Buttons don't work. The arrow runs across the monitor, but click commands are not executed.
The main board, reader, photocells, etc. are faulty.
The wheel control controller is faulty. In this case, it is not possible to scroll pages up and down.
Front USB ports are unreliable. When several ports are connected to the same microcontroller board. It happens that inexperienced users connect several 4G modems and printers to such ports at the same time - if a failure does not happen, then it will definitely happen. Modems will often lose cellular network and periodically disconnect. The same will happen with the printer; it will slow down in every possible way, stopping without finishing the document to the end. The USB mouse may not be recognized by the system. As you may have guessed, you need to distribute the equipment across all USB ports of the computer, including on the back panel.

In wireless mice:

USB 3.0 laptop does not see mouse

Laptops under control operating system 8.1 often encounter the “USB device not recognized” error. To prevent this problem? It is necessary to change the power supply circuit of the laptop.

Problems with the mouse on different devices and versions of Windows

After reinstalling Windows, chipset driver incompatibility may cause the mouse to fail to function. Each operating system includes drivers for the sensor, mouse, and touchpad, except MS-DOS. A common reason for a mouse not to work is a non-working USB driver, component – “Serial Bus Controller” and “Root Hub”. You need to find on the Internet the version of the chipset that is suitable for the version of Windows OS that is installed on your computer. at the moment. Although for versions 8.1/10 the main drivers are already provided as system components, it is not necessary to install them separately.

ACER netbooks, which are provided with Windows 7 by the manufacturer, when installing versions above, a problem appeared - the mouse did not work. The problem was in the netbook hardware - drivers Windows chipset 7 did not fit and appeared following problems: wireless lost network connection, the sensor did not work, the mouse did not work (the pointer was in one place). The problem was solved by removing the drivers and restarting the operating system. Devices and equipment were working normally again.