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USB port does not work after reinstalling Windows. USB port does not work after reinstalling Windows USB 3.0 does not work on Windows 7

In order for the user to quickly navigate USB controller malfunctions, I will give a short excursion into the terminology of this issue.

USB (USB, English Universal Serial Bus) is a universal serial bus for connecting peripheral devices to a computer via a four-core cable. Using this technology, it is possible to connect devices without their own (autonomous) power supply only due to the power supplied through this bus. Everyone is familiar with these devices - external hard drives, USB flash drives, adapters, etc.

Until recently, devices were predominantly equipped with USB 2.0. The less fast and powerful USB 2.0 is gradually being replaced by USB 3.0 with data transfer speeds of up to 5 Gb/s (up to 5 Gigabit/s) and power supply through the bus of up to 1 A (1 Ampere). Recently, the USB 3.1 standard began to be implemented - progress cannot be stopped.

USB 3.0 support is not supported by default on all operating systems

In new laptops, USB 3.0 connectors are painted blue, while USB 2.0 connectors remain black. An astute and savvy user could almost immediately assume that the problem lies precisely in the new USB 3.0 standard, which has not yet been fully implemented at the software level. Those. The USB 3.0 hardware is already installed in the laptop, but the software (driver) is not yet available.

Therefore, now we can answer the main question of this article: “ Why don't USBs work in a laptop after reinstalling Windows?". “Because there are no drivers for USB 3.0 ports in the Windows operating system!”

Which Windows OS will not work with USB 3.0?

This problem is typical for the operating systems Windows XP and Windows 7. But in Windows 8 and Windows 10 this problem practically does not occur. The reason is simple: USB 3.0 began to be implemented en masse after the release of Windows XP and Windows 7. But if in Windows XP the problem of non-working USB ports does not resolve on its own, then in Windows 7 you can try to solve the problem simply by turning on automatic updates for Windows. The system itself, based on the device ID (USB 3.0 controller ID), will recognize and install the driver, provided that the controller brand and manufacturer are “known” to Windows 7.

What if these are not USB drivers?...

It happens that a problem with USB ports is a symptom of a more complex and unpleasant breakdown. For example, this can serve as a signal of failure of the laptop motherboard chipset. More specifically, the breakdown of the south bridge. After all, it is the south bridge (I/O Controller Hub) of the laptop motherboard that is responsible for the peripherals - USB, SATA (IDE), Audio, PCI, Ithernet. Occurs due to: overheating, short circuit on the board, power supply problems, mechanical impact.

A simple test will help you check your hypothesis about the failure of the chipset: you need to select USB ports on your laptop that are colored black, i.e. USB 2.0, and check their functionality. If USB 2.0 works, but USB 3.0 does not, then the only problem is with the drivers.

How to fix the problem with USB 3.0 drivers?

For example, you installed Windows 7, and USB 3.0 did not work even after installing all the updates (drivers) from the MicroSoft website. Then there are two options: either install Windows 8/10 and at least USB 3.0 will most likely work right away, or you will have to look for drivers for the USB controller that is installed in your laptop. This will have to be done on the Internet, so you will need high-speed Internet access.

Where to find drivers for USB 3.0 (3 sources for)

• Go to the manufacturer's website and find the required driver through the search on the website. Here you will need a little experience: you need to know, first of all, what to download (there is no point in installing every driver); you need to know the exact brand of the laptop (name and alphanumeric index); Windows operating system 32 or 64 bit;
• Download any driver pack and install all the drivers using it. For example, from here - https://drp.su/ru/download.htm;
• Go to this site https://devid.drp.su/?l=ru (click the link below - I’m looking for a driver by hand) or this https://devid.info/ru and use the device ID to find, download and install the required one yourself driver

The first method from the entire list is the most preferable and, perhaps, the easiest, if everything is clear on the laptop manufacturer’s website and you have fast Internet. But sometimes you can find a whole list of USB drivers for one device and no hint as to which of these files should be downloaded and installed. Therefore, the second point with a driver pack can sometimes help much faster - if the Internet is fast (you will have to download several gigabytes of software). At the same time, you will have drivers for all occasions for your computer, laptop, netbook.

If there is no fast Internet, then it is best to carry out a clean installation (formatting the C: drive) of Windows after some preparation, i.e. creating a backup copy of files and drivers. Otherwise, you may find yourself in a situation where it is not possible to download the driver, since the network interfaces in the laptop do not work, and it is impossible to copy the driver pack from a flash drive (external drive), since the device is all USB 3.0 - and they do not work.

After installing the Windows 10 operating system on your computer or switching to it from previous versions, it may happen that peripheral devices connected via USB ports often turn off or even stop working correctly, displaying warning icons in the device manager in the form of a yellow triangle, as well as error code 43 in the description. What to do in this case? First you need to determine the culprit.

Of course, if several devices fall off at once, then it is clear that they are most likely not to blame and the reason lies in the computer itself. If only one device is faulty, then for diagnosis you need to carry out the following manipulations:

Try switching to a nearby USB port. This advice is especially relevant if the system unit is located somewhere under a table in a dusty corner and is wiped only once a year. And then, before doing this, you need to see if it is clogged with dust or debris.

Replace the connection cable. This is generally a sore spot - cords are lying around anywhere, their connectors are bent, they are crushed by a chair or shoes, they are chewed by pets, etc. As an example, we can take iPhone smartphones, whose proprietary cables break near the plug after just a couple of months of active use.

If an external hard drive fails, the error most likely appears because the second connector on the cable is not connected and it simply does not have enough power.

If there is another computer or laptop, then connect the device to it and observe the work. As an option, you can go to friends or relatives. If the gadget functions there without problems, everything will immediately become clear.

So, we have come to the conclusion that the causes of the problem with USB ports are hidden in the computer. Let's look for them!

Outdated drivers and BIOS

Very often, outdated or incorrect drivers are to blame for bus failure. This is especially noticeable when updating the system, when everything worked fine on the old OS, but after updating to Windows 10 glitches began with error 43 and “Device not recognized” messages. To fix it, you need to go to the motherboard manufacturer’s website, look for a new version of the software and install it.

An alternative option is to download the Drivers Solution Pack client online and use it to update drivers.

Usually after this the malfunctions are eliminated completely and irrevocably.

I also want to talk about a couple of cases where problems with USB ports on Windows 10 appeared due to an outdated BIOS version. Moreover, both times it was not on old decrepit hardware, but on new ASUS laptops after upgrading the pre-installed “Eight” to “Ten”. Everything was solved by downloading the latest version of the BIOS from the official website and flashing the motherboard using a special utility that came with the kit.

Reinstalling a port concentrator

Sometimes this trick helps fix errors with USB: Right-click on the “This PC” icon and select “Manage”. The “Computer Management” system snap-in will open. In it you need to select the “Device Manager” section:

Here we find the “USB Controllers” section and open it. We need the “USB Root Hub” item. Right-click on it and select “Disable”. Close the window and restart the computer. We return to the dispatcher again and turn on the hub. After this, all USB ports should work without problems.

Power plan settings

This case is especially relevant for owners of laptops, netbooks and ultrabooks. The fact is that in order to save battery energy, they have activated the function of selectively turning off devices, and if at a certain point in time a lot of consuming gadgets are connected to the computer (phone charger, card reader, portable speaker, etc.), then Windows 10 can Selectively disable one or more devices at once.

To disable this option, go to Device Manager again and open the properties of the USB root hub. On the “Power Management” tab, uncheck “Allow the computer to turn off this device to save energy.” After that, close the manager and reboot.

nastroisam.ru

USB ports on a computer or laptop do not work, the front ports do not work or stopped working after installation

If, when connecting a device via USB, it does not initialize, is not detected by the operating system, and does not display any messages at all, then the reason may be that the controller responsible for this port is disabled.

The first thing you should do is look at the status of the ports in Device Manager. To launch it, enter the command “devmgmt.msc” in the Run window (Win + R).

Open the USB Controllers section and look at the status of the USB hub or USB Root Hub.

In the picture one of them is shown disabled. Enable it using the right button – Enable.

You can also go to the properties section - Power Management tab, uncheck the box for permission to turn off devices to save power.

In the same properties, you can check the relevance of installed drivers and update them if necessary.

If the controller is marked with a yellow exclamation mark, then try reinstalling its driver, or removing all controllers and rebooting the system, after which they should automatically install and work properly.

All ports do not work

If all ports do not work at once, reboot the computer and go into the BIOS (F2 or del key at startup). Depending on the type and version of BIOS, the settings may vary. You should find the “USB Function” and “USB 2.0 Controller” parameters, they should be in the “Enabled” position. Most often they are located in the “Onboard Devices Configuration” section

Only the front connectors do not work

If we are talking about a PC, then we should distinguish between the front and rear connectors. The rear ones are located directly on the motherboard, the front ones are connected to it using a special cable. Therefore, when the front USB stops working, first check the operation of the device when connected to the rear one.

How to find a driver for an unknown device (error 28)

If it is working, you will have to remove the cover of the system unit (with the computer's power off), and then check that the front connector cable is connected correctly to the system board.

The correct connection pinout can be found in the description of your motherboard, but usually how to connect is clear from the labels on the motherboard.

Other reasons and solutions

If you use an extension cord or hub, check the operation of these devices when connected to other ports or on another computer.

If we are talking about a non-functional USB 3.0 connector, check whether its special cable is connected to the corresponding connector on the motherboard.

Check the drivers of the devices themselves that are connected via the ports; the reason may be in these devices, and not in the connectors.

If none of the methods produces results, then this particular port or controller probably has mechanical damage, which can be repaired at a service center.

composs.ru

USB ports stopped working

The situation is not so rare - we’ll try to figure out the problem and quickly solve it ourselves.

So, first you need to clarify whether USB on your computer has stopped working or USB on your laptop has stopped working. The strategy in each case will be slightly different, and the sequence of actions for self-diagnosis and restoration of the correct operation of the universal serial bus controller (USB, Universal Serial Bus) will also be slightly different.

Diagnostics of USB in a computer and methods for repairing it

If your computer's USB stops working, you need to take a number of measures:

• if the USB on the front panel of the desktop computer case does not work, then a mechanical failure has most likely occurred;
• or when connecting the USB case of the system unit (4 wires; 2 of which are signal, and 2 provide power) to the connectors on the motherboard (the so-called front panel), an error occurred - the USB is not connected correctly (the polarity or the sequence of the transmission wires is broken data);
• To check the correct connection and avoid more serious damage to the computer's motherboard, you need to connect a known working device, such as a flash drive, to the connectors located on the rear of the system unit - the USB of the motherboard. At the same time, never rush to connect devices to the front panel - there is a risk of burning the flash drive if the polarity is not observed.
• Thus, if the flash drive is detected at the back of the system unit, but does not want to work at the front, we conclude that the contact in the USB panel is broken (soldering at the points of connection with the wire and the connector itself often breaks off), the USB connector is damaged (this fact is easily revealed by visual inspection), not If the USB hub connector on the motherboard is connected correctly or not connected at all, to do this you will have to remove the protective casing of the system unit and assess the condition, armed with a manual with the correct indication of the connection sequence.

For each motherboard, it is better to look at the sequence separately, since there is a direct sequence (reverse), a horizontal position of the block and a vertical one. It is worth paying attention to the colors of the contacts and the block (if it is painted in some way), or the colors of the contacts and their location relative to the metal contact pins of the block (especially the missing pin).

If connecting to the USB connectors on the motherboard did not give anything, you should pay attention to the color of the USB itself - black or blue. If the USB to which the flash drive is connected is blue (the plastic inside the connector itself is painted blue as in the picture), then this indicates that we are trying to work with a USB 3.0 port. This is a more powerful connector in all respects, but also more problematic. The fact is that such USB connectors may not work after reinstalling Windows without separate drivers, or may not work correctly with some devices even if they are present. This situation can lead to both inability to work and various types of failures - blue screens and computer freezes. Therefore, for a complete diagnosis, we look for the black USB connector and connect to it. If the device is detected, we conclude that the problem is with the drivers for USB 3.0. To fix this problem, install the drivers from the motherboard kit or, best of all, download them from the manufacturer’s website.

If devices are not detected in any of the USB ports, then the reason may be in the controller, then purchasing a separate device called a USB2.0-PCI or USB3.0-Mini PCIe expansion card will be a salvation, since repairing a USB controller for the motherboard computer is not cost-effective. The boards cost differently and differ in speed characteristics and power supply.

USB2.0 board is traditionally cheaper, has lower speed, and will fit into an old computer; but it may not fit into a new one with a MicroATX motherboard (a small board with one PCI slot).

USB3.0 boards are usually more expensive, more powerful and faster, but are not suitable for an old computer; can be used if PCI slots are occupied or obscured by a video card.

Here is a set of work to diagnose and restore functionality for a USB computer - for a laptop it may be somewhat more complicated (or easier).

Self-diagnosis and repair of a USB laptop

The algorithm for diagnosing and repairing a USB laptop is similar to that of a computer, but there are some features. Firstly, the diagnosis is very simple, and secondly, the repair is quite complicated. I would like to warn you right away that accurate diagnostics are best carried out after a complete reinstallation of Windows, since there is a possibility that the previous installation of drivers will be incorrect and incorrect parameters will be recorded, which will lead to the inability to restore the correct operation of the laptop. Diagnostics consists of testing the operation of the black and blue connectors on the laptop (USB2.0 and USB3.0). If USB3.0 does not work, we try to connect the USB flash drive to the 2.0 (black) connector; if USB2.0 works, we conclude that we need drivers for USB3.0. It is best to use official sources with drivers for these purposes, i.e. laptop manufacturers' websites. Various disks with auto-installation of drivers may or may not help. Therefore, you need a high-quality laptop repair - be prepared to work hard (this applies to everyone). If you find that even after reinstalling Windows, none of the existing USB ports work, this is bad. One hope is that someone simply turned them off through bios - go into bios and turn them on. Otherwise, most likely the controller has failed or there are problems with the south bridge of the laptop motherboard. In any case, a complex laptop repair will be required - replacement of the bridge, which can only be carried out at a service center.

Naturally, before this it is necessary to exclude mechanical damage to the laptop’s USB ports, which can also lead to short circuits. This situation will be characterized by the following phenomena: the laptop turns off when USB is connected, or the laptop turns on and immediately turns off. Mechanical damage can be assessed visually by looking into the slot of the connector: if all the hardware is in place, everything is in order. Moreover, you will have to inspect all the connectors, and not just where you want to attach the flash drive. If a problem connector is detected, the laptop will need to be repaired - replacing the USB port.

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USB ports on laptop not working

A number of laptop users may encounter a situation where the USB ports on the laptop do not work, and devices connected through them are not recognized by the Windows system. This problem occurs quite often and can have many causes, making it difficult for the user to work with the USB devices he needs on his computer. In this article I will tell you why USB ports on a laptop do not work, what are the reasons for this phenomenon and how to fix it.

Fixing a problem with USB ports on a laptop

Causes of the problem when USB ports on a laptop do not work

So, why did the USB ports on the laptop stop working? The reasons for this dysfunction may be the following:

How to fix non-working USB ports

In order to fix non-working USB ports on a laptop, you need to do the following:

Video solution to a situation where the USB port does not see the device

In this material, I examined a situation in which the USB ports on a laptop do not work, listed a list of reasons for this dysfunction and provided a number of tips for solving it. If you do not know what exactly caused these problems with USB ports, then consistently follow the entire set of tips I have listed, this will help to effectively solve the problem with malfunctioning USB ports on your PC.

Best usb ports not working

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Why don't USB ports work?

More than once I have received questions related to the fact that it was not possible to connect a single USB device. The system simply did not find the device. And here it is obvious that the problem is not in the device itself, if the user has already tried to connect a bunch of devices, but there is still no result.

Both home computer owners and laptop users may encounter this problem. I can’t immediately answer why exactly you can’t work with USB devices, so I’ll try to figure out the causes of this problem and find a way to get rid of this problem.

What is the reason for USB ports not working?

Please note that we will be looking at a problem where it is impossible to connect any USB device at all. We will talk about what to do when only one port does not work in another article. Here we will talk about a common problem when usb basically does not work.

The first thing we need to check is the controller responsible for the ports. It might just be disabled. How to enable it in this case? You will need to go into the BIOS. When you turn on the computer (before the system boots), press the F2 key (on some operating systems you need to press Delete or F8). It also depends on what kind of motherboard you have installed.

So, we found ourselves in the BIOS, what next?

• Here, pay attention to the “Integrated Peripherals” category. But you will have this item if Award BIOS is installed. There is also Ami BIOS. In the second case, pay attention to the inscription “USB Controller/2.0). How can you tell if the controller is turned on or not? If the controller is enabled, we will see the inscription “Enabled”. When the controllers do not work, the word “Disabled” is written. Are you sure the controllers are turned off? We turn it on, then don’t forget to save the changes and restart the computer.

• It is quite possible that we connected a non-working device, and because of it the system cannot connect the others. This needs to be checked. So, be sure to turn off your computer and then disconnect each device. Next, turn on the PC, then try to insert a USB drive that definitely works (only this one!), if we can work with a flash drive, then the USB ports do not work here due to peripheral devices.
• Now we will try to fix the problem using Device Manager. In the manager window there should be an item “USB Serial Bus Controllers”. By studying it carefully, we can understand whether we have problems with the devices. If they are, an exclamation mark will appear next to the device. It tells us that there really is a malfunction.
• If this does not help, then it may be worth getting rid of the USB controllers (we delete them through the same device manager). Then we restart the computer, connect the devices, and the system will automatically install new controllers.
• There is such a wonderful feature in every OS as “System Restore”. You can try to return the system state to the day when USB devices were still working.
• Rebooting the USB hub may help. In this case, it will not work, but we will fix this by simply restarting the PC.
• If you do not have the most “ancient” PC or laptop, then USB hubs can turn off all or some devices to save power. And the user does not receive any notifications about this. Accordingly, we need to disable the saving function. Go to Device Manager, find the “Universal Serial Bus Controllers” section, and then go to the “USB Root Hub” tab. All that remains is to double-click on the left mouse button and then go to the “Power Management” tab. Next to this box, uncheck “Allow the computer to turn off this device to save energy.” Don't forget to save your settings. Thus, you will need to disable the saving function for each connected device.

Hello friends! The other day, a friend of mine bought a new laptop with Windows 10 pre-installed and asked me to install Windows 7 on it, butat the beginning of the system installation an error began to appear« The required driver for the optical drive was not found...". We all know that this happens due to the fact that the Windows 7 distribution does not contain drivers USB 3.0 and you just need to connect the bootable USB flash drive to the portUSB 2.0, but there was no such port on the laptop, all ports were USB 3.0 . In such a case, I have prepared another flash drive with drivers that need to be slipped into the Win 7 installer during installation, but this number did not work either. Trying to use a portable USB drive and Windows 7 DVD also ended with this error. As a result, I turned to my friend Vladimir for advice and he advised very interesting solution!

Hello friends! If you look at the comments on our site over the past year, you will notice one constant problem that arises for many readers, its essence is this. If you bought a new laptop (no matter what manufacturer), then on the manufacturer’s official website you can download drivers for your laptoponly for new operating systems: Windows 8.1 and Windows 10, and for Windows 7 there are no drivers and are not expected.To be honest, Windows 10, and even Win 8.1, work slowly on all laptops in the price range up to 30 thousand rubles (These are the kind of laptops that most Russian residents buy). The point here, of course, is low-power processors, toThese laptops are equipped with them andinsufficient amount of RAM - 4 GB, and of course adds brakes classic hard drive (information storage device,based on the principle of magnetic recording, a development of the last century).

The first thing that comes to the mind of a person who buys such a laptop is to install the good old Windows 7 on it, with the hope that it will work faster (this is partly true), but In my personal opinion, installing Windows 7 on a new laptop is not the best option, since conflicts between the latest hardware and the old operating system are inevitable. It’s better, in this case you won’t have to convert the hard drive to GPT style, and you’ll always have a second working operating system at hand, pre-installed from the store - Win 10 or Win 8.1.

If both of the above options do not suit you and you decide to remove everything from the laptop’s hard drive and install it on it Windows 7, then I warn you, onIn fact, this will turn out to be quite a difficult task even for an experienced user, because to successfully install the seven, firstly, you need to create a bootable USB flash drive with Windows 7 in a special way so that the system sees USB 3.0 ports, thenyou need to disable the UEFI interface on the new laptop, then convert the hard drive from GPT style to MBR and only after that Windows 7 will be installed, but that’s not all!Those users who can install Windows 7 on their devices, after successful installation of the system, are faced with the last and sometimes insurmountable task - finding drivers for their laptop devices running Win 7.

And in fact, what is the actual miraculous way to download drivers for a laptop on the Internet, if the drivers for the local Internet and Wi-Fi network adapter are not installed, and the driver assembly located on an external USB drive cannot be started, since they do not work on the laptop USB 3.0 ports (after all, drivers for the chipset and USB controller are not installed either). Of course, if your laptop has a disk drive, then the drivers can be downloaded on another computer and uploaded to a DVD, but not everyone has a second computer, and many new laptops and ultrabooks do not have a disk drive, and even assemblies with drivers on a DVD won't fit.

Friends, in fact, all these issues can be resolved! Let's go step by step through all the stages of installing Windows 7 on a new laptop and everything will become clear to you

Driver assemblies "Snappy Driver Installer" and "DriverPack Solution"

Firstly, Before installing Windows 7 on a new laptop, download the driver assembly« Snappy Driver Installer » to a portable USB disk or USB flash drive. Go to the official assembly site

https://sdi-tool.org/download/

and select the full package SDI Full(suitable for those who want to have a complete set of drivers with them and not depend on Internet access, size 12 GB) and click “Download”

The driver folder is downloaded to our computer, we will launch the driver installer SDI_x64_R496.exe directly from the folder.

Let’s also download the “DriverPack Solution” assembly", which contains a huge number of drivers for almost all known devices. Recently, many users have been criticizing this assembly, since in normal mode it installs various side software along with drivers, but this will not happen, eIf you install drivers in mode"Expert" , in this case, only the drivers you select will be installed on your laptop.

https://drp.su/ru/download.htm

Select “DriverPack Offline” and click “Download”

The “DriverPack Offline” ISO image is downloaded to our computer.

After downloading, you can copy the contents of the image to a folder called “DriverPack”, we will launch the DriverPack.exe driver installer directly from the folder.

So, driver assemblies “Snappy Driver Installer” and "DriverPack Solution" downloaded by us to a portable USB drive or flash drive.

Creating a bootable USB flash drive for Windows 7

After creating a bootable USB flash drive with Windows 8.1, download and connect it to the virtual drive, then go to the “sources” folder on the virtual drive and copy the install.wim file,

Then go to the bootable USB flash drive Windows 8.1 also to the “sources” folder and delete the install.esd file from it,

A file

What does this give us!

We all know that installing Windows 7, 8.1, 10 occurs in two stages. First of all, the Windows preinstallation environment is loaded from the file boot.wim, at this moment we accept the license agreement, select the partition to install and click the “Next” button, then the second stage follows, The Windows installer unpacks the contents of the main operating system image file onto the partition we select - install.wim or install.esd. So, can be used beforeWindows 8.1 installation environment from the boot.wim file for installing Windows 7 ( file boot.wim in the Windows 8.1 distribution has USB 3.0 drivers), this is why we replaced the file install.esd on a bootable USB flash drive Windows 8.1 fileinstall.wim from the Windows 7 distribution and now our Windows 7, being on a bootable USB flash drive Windows 8.1, will calmly go through the first and second stages of installation on a new laptop with ports USB 3.0.

Also, be sure to copy it to a flash drive in a folder"sources" Windows edition configuration fileei.cfg with content

Installing Windows 7

Now everything is ready to install the system. Booting our new laptop from a bootable USB flash drive Windows 8.1 with the install.wim image file (Windows 7).

"Install"