How to fix an external hard drive or USB stick not appearing in File Explorer

Hardware & Peripherals KB-407

Summary

This guide helps you troubleshoot and resolve: How to fix an external hard drive or USB stick not appearing in File Explorer. Follow the steps below to fix the issue.

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Common Causes

It can be frustrating when you plug in a USB stick or external hard drive and it doesn't appear in File Explorer. This issue is often caused by a lack of a drive letter assignment, outdated drivers, or a connection fault rather than a complete hardware failure. This guide will walk you through the process of identifying and resolving these issues on a Windows environment.

Quick Fix Steps

Before diving into system settings, try these simple hardware checks to rule out physical connection issues:

Try a different USB port: Plug the device into a different port on your computer. If you are using a USB hub, try plugging the device directly into the PC.
Test on another device: Plug the drive into another laptop or PC to determine if the issue is with the drive itself or your computer.
Listen for the sound: Does Windows play the "device connected" chime when you plug it in? If not, the drive may not be receiving power.

Detailed Instructions

Using Disk Management to Assign a Drive Letter

Sometimes Windows recognises the hardware but fails to assign it a drive letter (e.g., E: or F:), making it invisible in File Explorer.

Right-click the Start button and select Disk Management.
Look through the list of drives in the bottom pane. Look for a disk that is labelled as Removable or External and has a black or blue bar.
If you see the drive but it has no letter assigned:
- Right-click the partition (the rectangular block) of that drive.
- Select Change Drive Letter and Paths...
- Click Add, choose a letter from the dropdown menu, and click OK.

If the drive appears as "Unallocated" (black bar), it may need to be initialised or formatted. Be aware that formatting will erase all data on the device.

Using Device Manager to Update Drivers

If the drive does not appear in Disk Management, the driver may be corrupted or outdated.

Right-click the Start button and select Device Manager.
Expand the Disk drives section.
Look for any device with a yellow warning triangle or labelled as Unknown Device.
Right-click the device and select Update driver.
Choose Search automatically for drivers and follow the on-screen prompts.
If the update doesn't work, right-click the device again, select Uninstall device, unplug the drive, and restart your computer. Plug the drive back in to force Windows to reinstall the driver.

Troubleshooting Further Hardware Issues

If the device is still not detected, you may be facing a more complex hardware conflict. If you have experienced similar issues with other peripherals, such as a keyboard or mouse not responding, it may indicate a wider USB controller problem.

Never attempt to open the casing of an external hard drive. This will void your warranty and likely cause permanent data loss due to dust contamination.

Checking for Power Issues

External Power: If your hard drive has its own power cable, ensure it is plugged directly into a wall socket.
USB-C Adapters: If you are using a USB-C to USB-A adapter, ensure it is compatible with high-speed data transfer and not just for charging.

If you have followed these steps and the drive remains undetected, the hardware may have suffered a physical failure. For further assistance or to investigate data recovery options, please Open a Ticket.

Still Having Issues?

Need more help? If the issue persists after trying these steps, please open a support ticket and our team will assist you.

💻 Open a Ticket