Windows 10でUSBストレージドライブが認識されない – 解決方法

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

Is your USB device not recognized by Windows 10? It can be frustrating when you keep getting a “USB device not recognized” message when you plug in your device. Fear not, we can help. It’s often a simple fix.

Follow our step-by-step process below.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

Windows 10でUSBデバイスを接続したとき、デバイスが認識されず、「USB デバイスが認識されません」というメッセージが繰り返し表示されて煩わしいことがあるかもしれません。ご心配なく。私たちがお手伝いします。たいていは、簡単に解決できます。

Follow our step-by-step process below.

以下の手順に従ってください。

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

Test the drive while connected to another port, as well as with another cable (if available) to rule out a faulty connection.

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

別のポートに、別のケーブル（ある場合）で接続し、接続障害の可能性がない状態で、ドライブをテストします。

Look in your System Tray for the Found New Hardware icon. If it’s not there, reboot the computer, and look for the icon again. If it’s still not there, take the drive to another computer and see if it works there.

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

システムトレイで[新しいハードウェアが見つかりました]アイコンを探します。見つからない場合は、コンピューターを再起動し、もう一度アイコンを探します。それでも表示されない場合は、ドライブを別のコンピューターに移動し、そこで動作するかどうかを確認します。

If the icon is in System Tray, go to File Explorer. The drive should be listed there as a removable device. If it isn’t, move on to step 4.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

アイコンがシステムトレイにある場合は、エクスプローラーに移動します。ドライブがリムーバブルデバイスとして一覧に表示されます。表示されない場合は、手順4に進みます。

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

Right-click on My Computer and select Manage. Click on Disk Management and look for the drive in the lower pane on the right. If it is there, right click on it and select Change Drive Letter, follow the steps to assign a new drive letter, and then check My Computer for the removable drive again.

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

[マイコンピューター]で右クリックし、[管理]を選択します。[ディスクの管理]をクリックし、右側の下部ペインにあるドライブを探します。ドライブが存在する場合は、右クリックして[ドライブ文字の変更]を選択し、手順に従って新しいドライブ文字を割り当て、[マイコンピューター]でリムーバブルドライブをもう一度確認します。

If the drive isn’t in Disk Management, open Device Manager. Once in Device Manager, look for a yellow ? or ! under the category Universal Serial Bus Controller.

If you see any yellow ? or ! icons, right-click on that line and select Uninstall. After the uninstall, reboot the computer with the drive still connected.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

ドライブが[ディスクの管理]に表示されない場合は、[デバイス マネージャー]を開きます。[デバイス マネージャー]の[ユニバーサル シリアル バス コントローラー]というカテゴリの下に黄色の?または！が表示されていないか確認します。

黄色の?または！が表示されている場合は、その行を右クリックして、[アンインストール]を選択します。アンインストールが完了したら、ドライブが接続された状態でコンピューターを再起動します。

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

If the drive still isn’t recognized by Windows, unplug all other USB devices (except mouse and keyboard), and then reboot the computer again, with the storage as the only connected USB device.

それでもドライブがWindowsで認識されない場合は、他のすべてのUSBデバイス（マウスとキーボードを除く）を取り外し、USBデバイスとしてストレージのみを接続した状態でコンピューターを再起動します。

Hopefully, one of our steps helps Windows recognize your device. But what next? If your device is now detected and you are struggling to format your USB, check out our guide on formatting your USB on Windows.

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