Como corrigir uma unidade USB não reconhecida no Windows 10

26.12.2025 Vasilii

Quando um USB drive not recognized Windows 10 problem appears, the first concern is usually your files. Windows may fail to show a USB drive in File Explorer even though Gerenciamento de disco or Device Manager can still detect it. However, the correct fix depends on what Windows can see. A missing drive letter needs a different solution from a RAW partition, an unallocated USB, or a device that shows “No Media.”

This guide explains how to fix a USB drive not recognized Windows 10 issue without making data loss worse. You will learn when to check hardware, drivers, power settings, CHKDSK, or recover files first. If Windows still detects the USB but your files are inaccessible, Magic Data Recovery pode oferecer uma solução prática Recuperação de dados USB opção.

USB Drive Not Recognized Windows 10: Identify the Problem First

Before trying random fixes, check where the USB appears.

O que você vê	Causa provável	O melhor próximo passo
Missing from File Explorer but visible in Disk Management	Letra de unidade ausente	Atribuir uma letra de unidade
Mostra RAW	Corrupção do sistema de arquivos	Recupere os arquivos primeiro
Shows Unallocated	Partição perdida ou danificada	Recover data before creating a volume
Appears only in Device Manager	Driver/controller issue	Reinstall the device
Exibe “Sem mídia” ou 0 bytes	Hardware-level failure	Stop DIY repair
Desaparecido em todos os lugares	Port, connection, or physical failure	Test another port and PC

A USB drive not recognized Windows 10 error is a symptom, not one failure. Therefore, match the fix to the device condition.

Why Is My USB Drive Not Recognized in Windows 10?

Common causes include a faulty port, missing drive letter, corrupted driver, USB power-saving settings, file system corruption, a lost partition, or failing flash hardware.

For example, a USB may disappear from File Explorer after unsafe removal while Disk Management still shows it as RAW. The files may still exist, but Windows can no longer read the file system. Therefore, protect important data before destructive fixes.

Before You Fix a USB Drive Not Recognized Windows 10 Issue

Use a recovery-first workflow: stop writing new data, check Disk Management, and recover important files before formatting RAW or não alocado space. Save recovered files to another physical drive.

Also, avoid repeated CHKDSK attempts on an unstable USB. Do not create a new volume over unallocated space if you need the old files. If the device shows 0 bytes, “No Media,” or constant disconnects, stop DIY repair.

In short, follow one rule whenever important files are involved: primeiro, recuperar; depois, reparar.

Fix 1: Check the USB Port and Another Computer

First, start with the simplest possibility.

Disconnect the USB drive.
Connect it to another USB port.
Avoid USB hubs during testing.
If possible, try another Windows PC.

If the USB works elsewhere, the original PC likely has a port, driver, or power issue. However, if it fails on several computers, continue with Disk Management.

Fix 2: Check the USB in Disk Management

Next, open Disk Management. It is one of the best tools for diagnosing a USB drive not recognized Windows 10 issue because it can show devices that File Explorer hides.

Imprensa Windows + X.
Selecione Gerenciamento de disco.
Find the USB by capacity.
Check whether it appears as Healthy, RAW, Unallocated, or No Media.

If the partition is healthy but lacks a drive letter, continue to Fix 3. If it shows RAW or Unallocated, recover files first. Meanwhile, if it shows No Media, skip to the hardware section.

Fix 3: Assign a New Drive Letter

A missing or conflicting drive letter can make a healthy USB disappear from File Explorer.

Aberto Gerenciamento de disco.
Right-click the USB partition.
Escolha Alterar a letra da unidade e os caminhos.
Clique em Adicionar ou Mudança.
Select an unused letter and click OK.

Then reopen File Explorer. If the drive appears, you solved the USB drive not recognized Windows 10 problem without changing its file system.

This method is especially useful when Disk Management shows a normal NTFS, FAT32, or exFAT partition but File Explorer does not list the device.

Fix 4: Update or Reinstall the USB Driver

Sometimes Windows detects the hardware incorrectly because the USB driver or stored device configuration has become corrupted.

First, open Gerenciador de dispositivos, expand Unidades de disco ou Controladores de barramento serial universal, right-click the affected device, and choose Atualizar o driver.

If that fails, choose Desinstalar o dispositivo, disconnect the USB, restart Windows, and reconnect it. Windows should detect the device again with a fresh configuration.

É importante ressaltar, Atualizar o driver e Desinstalar o dispositivo do different things. Therefore, reinstalling the device can help even when Windows reports that the best driver is already installed.

Fix 5: Disable USB Power Saving

Power management can cause a USB to disconnect or fail to wake.

Em Device Manager > Universal Serial Bus controllers, open Hub de raiz USB ou Generic USB Hub properties and clear Allow the computer to turn off this device to save power.

Next, disable Suspensão seletiva de USB under:

Control Panel > Power Options > Change advanced power settings > USB settings

Afterward, reconnect the drive and check whether the USB drive not recognized Windows 10 issue is resolved.

This solution is particularly useful when a USB works after startup but disappears after the PC wakes from sleep.

Fix 6: Scan for Hardware Changes

A temporary driver error may only require Windows to refresh connected hardware.

Aberto Gerenciador de dispositivos.
Clique em Ação.
Selecione Verificar se há alterações no hardware.
Wait for the device list to refresh.

After the scan, check File Explorer and Disk Management again.

If the USB returns, Windows likely lost the device connection temporarily rather than suffering from file system damage.

Fix 7: Recover Data Before Repairing a RAW or Unallocated USB

If Disk Management detects the USB but shows RAW, Unallocated, a missing partition, or a format prompt, recover files before repair.

É aqui que Magic Data Recovery becomes useful. Instead of changing the damaged file system first, it scans a detectable storage device for recoverable files and lets you save them elsewhere.

Therefore, Magic Data Recovery fits situations where the main problem is inaccessible data rather than a simple Windows driver issue.

Os cenários típicos incluem:

The USB appears as RAW.
Windows asks you to format the USB.
The original partition becomes Unallocated.
Files disappear after deletion or file system corruption.
Windows detects the drive, but folders no longer open normally.

Fix 8: Run CHKDSK After Important Files Are Safe

CHKDSK can repair some file system errors, but use it only when Windows still assigns a drive letter, the USB remains stable, and important files are already backed up or recovered.

Abra o Prompt de Comando como administrador e execute-o:

chkdsk X: /f

Substituir X: com a letra de unidade correta.

O /f option tells CHKDSK to repair detected file system errors. However, CHKDSK may change file system metadata while repairing the volume.

Therefore, avoid running it first on a RAW, severely corrupted, or unstable USB. If important files are still missing, recover them before using CHKDSK.

What If the USB Is Not Showing in Disk Management?

Se um USB drive not recognized Windows 10 device does not appear in Disk Management, check Device Manager next.

If Device Manager detects it, reinstall the device, scan for hardware changes, and test another USB port.

However, if neither Disk Management nor Device Manager can see the USB on several computers, the failure may be physical. At that point, recovery software cannot scan storage that Windows cannot access.

Therefore, repeated formatting tools, CHKDSK commands, or driver changes are unlikely to help.

Tips to Prevent USB Recognition Problems

Uso Remover o hardware com segurança before disconnecting a drive. In addition, avoid unplugging the USB during file transfers and keep another backup of important files.

You should also replace USB drives that frequently disconnect or report errors. Although these habits cannot prevent every USB drive not recognized Windows 10 error, they can reduce avoidable file system damage.

Conclusão

A USB drive not recognized Windows 10 problem should be diagnosed before repair. First, check another port and computer. Next, use Disk Management to identify whether the USB is healthy, RAW, unallocated, or showing No Media. Drive-letter, driver, and power fixes can solve many logical problems.

However, if the USB shows RAW, Unallocated, or a format prompt, recover important data before CHKDSK, formatting, or partition creation.

Magic Data Recovery is recommended in this situation because it addresses the real priority: retrieving files before repair changes the storage structure. It is not a solution for physically dead flash memory. Instead, it is a practical Recuperação de unidade USB option when Windows still detects the device but the files have become inaccessible.

If you are looking for a more efficient recovery solution before repairing the USB, try Magic Data Recovery.

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Compatível com Windows 7/8/10/11 e Windows Server

Unidade USB não reconhecida no Windows 10 - Perguntas frequentes

Why is my USB drive not recognized in Windows 10?

A USB drive not recognized Windows 10 issue can come from a faulty port, missing drive letter, corrupted driver, file system damage, lost partition, or hardware failure. First, check Disk Management and Device Manager. If Windows still detects the USB there, the problem is often logical or driver-related.

How do I fix a USB device not recognized error in Windows 10?

Reconnect the USB, test another port, and try another computer. Then check Disk Management. If necessary, assign a drive letter, reinstall the driver, disable USB power saving, and scan for hardware changes. Recover important data before formatting a RAW or unallocated drive.

Por que meu USB aparece no Gerenciamento de disco, mas não no Explorador de arquivos?

The most common reason is a missing drive letter. In Disk Management, right-click the partition and choose Change Drive Letter and Paths. However, if the USB shows RAW or Unallocated, do not format or create a new volume before recovering important files.

What should I do if my USB shows RAW in Windows 10?

A RAW USB means Windows cannot recognize the current file system. Recover important files first. Afterward, format the USB with NTFS or exFAT and test it again. If the device disconnects repeatedly, stop using it and consider professional hardware diagnostics.

Why is my USB showing No Media or 0 bytes?

“No Media” or 0-byte capacity often points to a controller or flash-memory problem rather than a simple file system error. Try another port and computer first. If the same status remains, software recovery may not work because Windows cannot access the actual storage media.

Can CHKDSK fix an unrecognized USB drive?

CHKDSK can repair some file system errors when Windows still assigns the USB a drive letter and the device remains stable. However, it can modify file system metadata. Therefore, recover or back up important files first, especially if the USB is RAW or severely corrupted.

Can I recover files from a USB drive that Windows 10 does not recognize?

Yes, if Windows still detects the USB and can access the storage media. Recovery software may scan RAW, inaccessible, or lost partitions. However, if the drive shows No Media, 0 bytes, or is not detected on any computer, professional hardware recovery may be necessary.

Como reparar uma unidade flash não detectada?

Comece com a reinstalação do driver e o Gerenciamento de disco. Se a unidade aparecer, mas estiver inacessível, recupere os dados antes de formatá-la.

Vasilii

Vasilii é um especialista em recuperação de dados com cerca de 10 anos de experiência prática na área. Ao longo de sua carreira, ele resolveu com sucesso milhares de casos complexos envolvendo arquivos excluídos, unidades formatadas, partições perdidas e sistemas de arquivos RAW. Sua experiência abrange métodos de recuperação manual usando ferramentas profissionais, como editores hexadecimais, e soluções automatizadas avançadas com software de recuperação. A missão do Vasilii é tornar o conhecimento confiável sobre recuperação de dados acessível tanto para profissionais de TI quanto para usuários comuns, ajudando-os a proteger seus valiosos ativos digitais.