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

Um dos problemas podem ser arquivos que corromperam e so executar o Prompt de Comando como administrador: " sfc /scannow " para verificar e reparar arquivos de sistema corrompidos.

One of the problems could be files that have become corrupted, so run Command Prompt as administrator: " sfc /scannow " to check and repair corrupted system files.

En este caso se puede descartar : - Da?o fisico en cable del dispositivo o puerto del computador - Falta de drivers - Deshabilitacion del puerto por bios - Restriccion de aplicaciones de seguridad

Procure testar o dispositivo USB em outro computador, assim você descarta a possibilidade de defeito no dispositivo, verifique se os drivers est?o devidamente atualizados, você pode verificar diretamente no site do fabricante do computador.

Ces PB peuvent venir peut être du périphérique externe HS, formatage non reconnue ou erreurs redondantes ou tous simplement la carte mère ou drivers pour un disque dur externes ou clés USB etc... Bien contr?ler visuellement et physiquement les périphériques et les ports USB sont très important dans un premier temps et le contr?le du software dans un deuxième temps. Etre bien ordonnées lors des opérations est important car en informatique un problème peut en caché un autre.

This is the best thing to do in case hardware issues. Sometimes restart helps in running all the system modules set right and most probably it should fix the issue unless there is some real hardware damage.

Redémarrer est une bonne chose. mais il vaut mieux faire arrêter puis démarrer sur le bouton manuellement en premier car suivant les systèmes d'exploitations comme Windows par exemple en redémarrage. Il enregistre la dernière configuration du système au moment du redémarrage, et n'éteint pas électriquement les différents périphérique de la carte mère donc plusieurs démarrage sont parfois nécessaires pour vraiment détecter les PB. Quand un simple éteindre l'UC, débrancher électriquement attendre 30sec puis démarrage manuellement permet au système d'éteindre tous les périphérique de la carte mère pour mieux réinstaller ses composants de base et si le PB persiste on pourras mieux comprendre ou chercher le PB.

When your computer fails to recognize a USB device, restart your PC to reset the hardware configuration and resolve temporary glitches. If the device still isn't recognized, update or reinstall USB drivers via Device Manager. Test the USB device on different ports and another computer to rule out device issues. Inspect and clean the USB ports, disable power-saving settings for USB hubs, and run the Hardware and Devices troubleshooter. Ensure USB ports are enabled in BIOS/UEFI settings and check for operating system updates. If the problem persists, professional repair may be needed.

If those ports seem innocent, don't fret! Sometimes a quick restart is all it takes to jolt your computer's memory and get things working again. Think of it like giving your computer a good cup of coffee - it can clear out the cobwebs and get it back on track. Just remember to save your work and properly eject the USB device before hitting restart. Once your computer's back up and running, plug the USB device in again and see if it's recognized. This short addition uses an analogy to make the step relatable and emphasizes the importance of saving data.

By default operating system tries to search for correct drivers ans install them automatically. But sometimes it installs incorrect or outdated drivers. Although Device Manager does not show any issues, the device does not work or work incorrectly. In such cases you have to manually search for correct drivers (preferably on device manufacturers website) and install them.

La mise a jours est très importants aussi bien pour le fonctionnement des composants et périphériques que de la sécurité de celui-ci. Donc en effet on peut faire les MAJ via le gestionnaire. Attention toute fois les maj proposées seront faites par votre système d'exploitation qui iras les cherchés dans la bibliothèque du fournisseur de votre OS sur son serveur. Privilégié en premiers les drivers des constructeurs de votre UC en allant visité le support sur son site internet.

When your computer fails to recognize a USB device, start by updating or reinstalling the USB drivers via Device Manager. Access Device Manager, locate "Universal Serial Bus controllers," right-click each USB Root Hub, and select "Update driver." If updating doesn't work, select "Uninstall device" and restart your computer to reinstall drivers automatically. Additionally, test the USB device on different ports and another computer, inspect and clean the USB ports, disable power-saving settings for USB hubs, and run the Hardware and Devices troubleshooter. Ensure USB ports are enabled in BIOS/UEFI settings and check for operating system updates. If the problem persists, professional repair may be needed.

When troubleshooting a USB device recognition issue, adjust settings to potentially resolve the problem. Start by ensuring USB ports are enabled in BIOS/UEFI settings. Next, disable power-saving settings for USB hubs in Device Manager under "Universal Serial Bus controllers." Inspect and clean USB ports physically, and test the device on different ports and another computer to rule out hardware or device issues. If the problem persists, update or reinstall USB drivers via Device Manager, run the Hardware and Devices troubleshooter, and check for OS updates. If unresolved, consider professional repair.

il faut également faire une recherche dans le BIOS car il peut être désactivé soit par votre système soit par la carte mère via le BIOS / UEFI.

essayer sur un autres PC c'est très bien mais il faut le faire au début des opérations car cela pourrai éviter de chercher pendant des heures pour rien.

When encountering a USB device recognition issue, try connecting the device to another PC to determine if the problem is device-specific or related to the computer. If the device works on another PC, it suggests the issue lies with the original computer's USB ports or drivers. In such cases, inspect and clean the USB ports, update or reinstall USB drivers via Device Manager, and ensure power-saving settings for USB hubs are disabled. Additionally, run the Hardware and Devices troubleshooter, check for BIOS/UEFI settings to enable USB ports, and update the operating system. If the problem persists, professional repair may be necessary.

If troubleshooting steps fail to resolve a USB device recognition issue, contacting support is the next step. Reach out to the device manufacturer's support team for guidance on resolving the problem. Provide details such as the device model, computer specifications, and steps already taken to troubleshoot. Support agents can offer specialized assistance, diagnose potential hardware or software issues, and provide further instructions or options for repair or replacement if necessary.

Check Disk Management (Windows) Open Disk Management: Press Win + X, then select Disk Management. Assign a Drive Letter: If the USB drive appears but doesn’t have a drive letter, right-click on it and select Change Drive Letter and Paths, then assign a letter.

There are different scenarios possible: the USB device was working and suddenly failed, the USB device is a new device and never been used before with this PC, the computer system messages pop up and no system reaction at all. The root cause is different.