Usb 3 works. Why does a computer or laptop not see a USB flash drive and a removable hard drive. Hotfix Replacement Information

On some computers, when you plug in a hard drive or USB 3.0 flash drive, you get the error "Device not recognized" (USB Device Not Recognized) or " Windows stopped this device because it reported problems.(Code 43)" in Device Manager.

In this article, you will find instructions for troubleshooting the following issues:

  • USB device not recognized/not detected
  • USB 3.0 flash drive not recognized/not detected
  • USB 3.0 not working on Windows 7/10

How to fix: USB 3.0 port not working on computer

Before we move on to troubleshoot this issue, you should try the following:

  1. Use a different USB cable if you are connecting the hard drive to a USB 3.0 port on your computer.
  2. Connect USB 3.0 to USB 2.0 port.
  3. Remove the USB device, turn off the computer, and unplug the power cord (or battery if you're using a laptop). Wait at least 2 minutes, and then reconnect the power cord. Turn on the computer and reconnect the USB device.
  4. If you are using Windows 7, Vista, or XP, download and run the Microsoft Troubleshooter utility.
  5. Reset BIOS to factory settings.

Solution 1 – Disable Fast Startup Feature in Windows 8 and 10


Note: If the fast startup option has already been unchecked, check it and restart your computer. Once restarted, uncheck the box and restart your computer again.

  1. Reload computer.

Solution 2 – Disable USB suspend settings


Solution 3 – Reboot your USB 3.0 device

  1. Open device Manager. For this:
  • Press the keys " Windows» + « R" to open the window " Run".
  • In the window " Run» enter: devmgmt.msc.
  • Click Enter.

2. In Device Manager, expand "ControllersUSB» .

3. Right click on " RootUSB-hub(USB 3.0 ) ' and select ' Delete".

4. Windows will automatically find and install the latest drivers for your USB 3.0 port.

Solution 4 – Install the latest USB 3.0 drivers

  1. Download Intel Driver Update Utility or AMD drivers.
  2. Run driver update utility and press " Further" on the first screen.
  3. Accept the license terms and click " Install".
  4. Wait while the driver update utility is installed.
  5. After installation is complete, click " Run».
  6. Click " Start Scan".
  7. When the driver scan is complete, click " Download", to download the latest drivers for your computer.
  8. Finally, click " Install".
  9. After installation is complete reload computer.

Solution 5 – Restore Windows to a previous working state

If the solutions above did not help with the problem when USB 3.0 does not work on the computer, you should try restoring the computer to a previous working state. This can be done if you have activated a Windows restore point earlier.

Please write in the comments below if you managed to solve the problem with a faulty USB 3.0 port, and what solution worked in your situation.

Despite the massive spread of cloud technologies and an increase in the speed of data transfer over the Internet, removable USB storage media are still actively used in working with computers. Flash drives of the latest generation transfer large amounts of information at a significant speed and do not depend on the connection, provider and network restrictions. This article describes the most common reasons why a personal computer does not see a USB flash drive, and provides instructions for solving these problems.

Physical problem with flash drive

This is not the most common, but the most obvious reason why the computer does not see the flash drive. Inside these devices are microcircuits, which, like any other electronics, can burn out. It is possible that water got inside the case and caused the contacts to close. Also, due to improper operation, one of the contacts of the plug could be damaged.

There are even special viruses that burn out all devices connected to a specific USB port of a personal computer. In this case, nothing can be done to help.

Physical problem with the port

Another obvious reason why the computer does not see the USB flash drive lies in problems with the port itself on the computer. The condensate that got inside it could oxidize the contacts, which leads to the loss of their performance. The port may have burned out due to power outages and unstable power supply.

Also, a similar problem may occur if the port is not connected to the motherboard. Similar situations often happen in the case of the front panel of a PC case. The controls and ports located on it must be additionally connected to the motherboard. If the wire came off, or they simply forgot to connect it, nothing will work.

In this case, you should independently check the wiring inside the system unit, or contact an assembly specialist.

Drivers for USB 3.0

Not so long ago, the USB 3.0 generation that came into use has not yet completely conquered the market. Typically, such ports are installed in cases along with the still relevant, but slower 2.0. They can be identified by the blue strip of plastic inside the connector itself.

The problem may be that the BIOS version you are using or the “clean” installed operating system has only the second generation drivers installed. Normal ports in this case work in normal mode, and the "blue" ones will not show any signs of life.

The problem is solved by installing drivers on your motherboard. They can be found on the included DVD or downloaded from the official website of the product manufacturer. You can also try to update the operating system - the Windows Update Wizard automatically pulls up and installs all the necessary patches.

Reinstalling drivers

If you are sure that your ports and a portable device are working, which for some reason the computer does not read, you can try reinstalling the driver on the USB port. Extreme care is recommended when handling installed drivers. Incorrect actions can disrupt the stable operation of the OS. It is best to create a Windows restore point before following this guide.


The necessary drivers will be automatically installed on your computer.

Virus infection

If the PC or laptop does not detect the flash drive, the problem may lie in some kind of malicious code. First, a script may be running on the computer itself that interferes with the correct operation of the controllers or Windows Explorer. To solve this problem, you need to scan the system for viruses and clean it. This is done with the help of special programs - antiviruses.

If you do not have an antivirus installed, it is highly recommended to download it. You can use a free utility from Microsoft - Security Essentials, which can be downloaded from this link. https://www.microsoft.com/en-us/download/details.aspx?id=5201.

Install the program and run it. Select "Full" from the options menu on the right and click the "Check Now" button. After that, you will need to wait a while while the utility looks for malicious scripts on your system.

Another problem may be that viruses have infected your removable device, and the antivirus program installed on your computer is blocking the infected flash drive. In this case, the PC detects the media, but will not work with it until it is cleared. Wait for a while while the antivirus prepares the device for safe operation.

System Configurations

The problem that the PC does not read the flash drive can be caused by specific settings in your Windows. You can change them by editing entries in the system registry:

Hello everyone Let's talk about flash drives, or rather about their compatibility. So I’ll write like this, well, not really delving into the terms, so that you understand well and so as not to burden you. So what is a flash drive? This is storage. In order for the data to get there, you need a cable, well, a plug, a port. This is roughly speaking the interface. But in order to have maximum comfort, it is necessary that the data gets to the USB flash drive as quickly as possible, as well as read from it. They are constantly working on this, coming up with new data transmission standards.

Today, well, for 2016, the most popular revision is both USB 3.0 and USB 2.0, maybe the latter is even popular. These versions differ mainly in speed and current strength. These are the two main differences. So what can I say here, I can only please, because USB 2.0 and USB 3.0 versions are fully compatible!

That is, a USB 3.0 flash drive will work quietly in a USB 2.0 connector and vice versa. However, it is important to understand that all this will work at USB 2.0 speed, to be honest, I don’t remember how much that speed is, but it’s still actually less than they write. I will say on my own, version 3.0 feels two to three times faster than 2.0, but even more in terms of performance.

Speed ​​is one thing, but there is also such a thing as current strength, here it’s already a little more interesting. The USB 2.0 version can provide up to 500mA and the 3.0 version up to 900mA, both are 5V. But here the main thing is that modern hard drives, well, those that are connected via USB 3.0, I don’t know how they will work if they are connected to a 2.0 port. They may work well, or they may not. For hard drives, high-quality and stable power is very important. In general, this point is important and you need to take into account, the same applies to recharging from USB ports. Check if there will be any problems, look for information on the Internet, this is just my advice to you

As you can see, speed is one thing and it mostly concerns flash drives, but other USB devices, this is already a bit serious moment. Better to consult. Personally, if I wasn’t sure, I wouldn’t connect a USB 3.0 hard drive to a 2.0 port, you never know ...

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