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Why does the computer not see the USB flash drive? 8 reasons

Sometimes at the most inopportune moment, when it is urgent to remove information from a USB flash drive to a PC, the computer refuses to see the new device. It is about the causes of this problem and its solutions that we will try to describe in detail in our article.

Hardware malfunctions

So, if your computer does not see the USB flash drive, then the first thing you should do when you find a problem is to check the health of the flash drive and the USB connector. A correctly functioning device connected to a working port will blink steadily. If the indicator blinks, but the computer still does not recognize the USB flash drive, then the problem should be looked for in the operating system.Lack of nutrition

Quite often, a flash drive does not work when connected to a port that is located on the front panel of the unit. It happens that such connectors simply do not connect to the main power, and sometimes they receive insufficient power. In this situation, you must try to connect the device to a free port on the back of the computer.

A flash drive may not work if there is a lack of power. This happens when there is excessive current overload in the USB ports or USB hub, as well as when the power supply is malfunctioning. In addition, it happens that the computer does not see the flash drive because it is too large, but as a rule this is rare.

Flash drive malfunction

If, after performing all the previous steps, the computer still does not see the USB flash drive, then the reason may be in the device itself. You should try connecting it to another computer. If the USB memory does not work on other PCs, then you can confidently say that it is faulty. It should be attributed to the diagnosis of a competent specialist.

It is possible to repair a flash drive, but very often repairs cost more than cost. Therefore, it is worth repairing the device with a strong need to restore data. In other cases, it is cheaper to buy a new drive.

BIOS settings

The problem is sometimes hidden in the settings of the current operating system. For example, the computer does not recognize the USB flash drive if USB support via the BIOS is not activated. When the BIOS setup is complete, a message may appear with the message “USB device not recognized”. This may be due to the reasons discussed below.

A flash drive is automatically assigned a flash drive

A very common problem when the system assigns a device the already occupied drive letter of a mapped drive. You can troubleshoot this way:

You should go to the Control Panel;
In the Administration section, select the Computer Management tab;
Open the Disk Management window. On the right should be a complete list of all available disks, including a flash drive.
Next, you need to position the cursor on the flash drive section, click the right mouse button, select the “Change drive letter” tab;
Then you need to select a free letter in the system and click OK.
It happens that the computer does not see the USB flash drive, because the necessary drivers are missing or outdated. In this case, updating the motherboard drivers will help. The name of her model can be viewed through the Everest program. Drivers should be downloaded from the official website of the developer.

Missing USB driver

Sometimes there is no special driver on the computer, and for this very reason the computer does not see the flash drive wherever we insert it. You need to check such a guess in this way:

We go through the Control Panel in the Device Manager menu;
In the proposed list of devices, you need to find USB controllers. One or more USB devices, in the absence of a driver, will glow with a yellow question mark;
Remove the malfunctioning device and reinstall it.
Viruses in the system

Sometimes the correct functioning of the flash drive is affected by viruses in the operating system. In this case, you need to scan the computer with an antivirus program and remove all viruses from the computer.

File System Incompatibility

Another reason why the computer does not see the flash drive may be that the computer cannot read the file system. This most often happens when the FAT file system is installed on the USB flash drive. You need to try reformatting the device to NTFS or FAT32.

As you can see, the incorrect operation of the flash drive can be caused by hardware or software problems. That is why, in each individual case, it is necessary to sort out different versions of the causes.

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