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Last updated on 2024年6月14日

What steps should you take when your computer fails to recognize a USB device?

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It can be frustrating when your computer doesn't recognize a USB device you've plugged in. This common issue can stem from various causes, but there are several troubleshooting steps you can take to resolve the problem. By following a systematic approach, you can often get your device up and running without needing professional help. This article will guide you through the process, ensuring you have all the necessary information to diagnose and fix the issue with your USB device.

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1 Check Ports

Begin by checking the physical USB ports on your computer. Sometimes, the issue can be as simple as dirt or debris obstructing the connection. Gently clean the port with a dry cloth or compressed air. Also, try plugging the USB device into a different port to rule out the possibility of a faulty port. If the device works in a different port, you may have a hardware problem with the original port that needs further investigation or repair.

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ABOUBACAR DOUMBIA

Administrateur système chez YESHI GROUP IT | Cisco Certified Network Associate Routing and Switching | MCSA | AZURE 104
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lorsque votre ordinateur ne reconna?t pas un périphérique USB il faut rapidement changer de port procéder a une mise a jour et redémarrer le pc si cela persiste

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Joffrey B.
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For example, you can use the `gcloud compute instances list` command to check if all instances are running as expected. Sometimes, connectivity issues can be as simple as misconfigured firewall rules. Ensure that the necessary ports are open by reviewing your VPC firewall rules with `gcloud compute firewall-rules list`. If you identify a problematic instance, attempt to restart it using `gcloud compute instances restart INSTANCE_NAME`. Should the issue persist, further investigate by reviewing the instance’s logs in Stackdriver to identify and resolve any underlying issues.

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2 Restart PC

One of the first and simplest steps to resolve USB recognition issues is to restart your computer. A reboot can often fix temporary glitches in the operating system that might be causing the problem. Before restarting, safely eject any currently connected USB devices to prevent data loss. After the restart, reconnect your USB device and check if it is now recognized.

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Joffrey B.
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In a Google Cloud Platform (GCP) environment, resolving USB recognition issues for virtual machines (VMs) can often be managed through a similar approach of resetting the system. First, ensure that any attached persistent disks are safely unmounted to prevent data loss. Next, restart the VM instance from the GCP Console by navigating to the VM instances section, selecting the problematic instance, and clicking the "Restart" button. This action reinitializes the VM's environment, potentially resolving any transient issues. After the VM restarts, reattach the USB device via the Compute Engine settings and verify its recognition within the guest OS.

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3 Update Drivers

USB devices rely on drivers, which are software that allows the operating system to communicate with hardware. Outdated or corrupted drivers can lead to recognition issues. Access your computer's Device Manager, locate the USB device or Universal Serial Bus controllers section, and check for any devices with a yellow exclamation mark, indicating a driver problem. Right-click and select 'Update Driver Software' to search for and install any available updates.

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4 Change Settings

Power settings in Windows can affect how USB devices are recognized. To adjust these settings, go to the Device Manager, expand the 'Universal Serial Bus controllers' section, and find the 'USB Root Hub' entries. Right-click on these and go to 'Properties', then 'Power Management'. Uncheck the option 'Allow the computer to turn off this device to save power'. This ensures that your USB ports remain powered during sleep mode, which can sometimes solve recognition issues.

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5 Check Disk

If your USB device is a storage drive and it's not recognized, it might have file system errors. Use Windows' built-in Check Disk utility to scan and repair these issues. Open Command Prompt as an administrator and type chkdsk E: /f where 'E' is the drive letter of your USB device. Press Enter and let the utility fix any errors it finds. Remember, this process can take some time depending on the size of the drive and the extent of the errors.

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6 Contact Support

If none of the above steps work, there might be a deeper issue with your USB device or computer. In this case, it's advisable to contact technical support for your computer or the manufacturer of the USB device. They can provide specialized assistance and advice that may be necessary to resolve more complex problems that are not easily diagnosed at home.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What steps should you take when your computer fails to recognize a USB device?

1

2

3

4

5

6

7

1 Check Ports

2 Restart PC

3 Update Drivers

4 Change Settings

5 Check Disk

6 Contact Support

7 Here’s what else to consider

Computer Networking

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What steps should you take when your computer fails to recognize a USB device?

1

2

3

4

5

6

7

1 Check Ports

2 Restart PC

3 Update Drivers

4 Change Settings

5 Check Disk

6 Contact Support

7 Here’s what else to consider

Computer Networking

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