USB Device Not Recognized

Having this problem? Work through the steps below in order. Stop when the problem is solved; you do not need to perform every step.

Common Causes

This problem can be caused by settings, drivers, software, connections, temporary Windows issues or hardware. Start with the simple checks before making major changes.

Step-by-Step Solution

Disconnect and reconnect the device.
Try another USB port.
Test the device on another computer.
Restart Windows.
Check Device Manager for an unknown USB device.
If the device contains important data, avoid formatting it before checking recovery options.

Important: Before changing drivers, formatting storage, resetting Windows or removing important software, back up important files and make sure you understand what the step changes.

If the Problem Continues

Note what changed immediately before the problem started. Test the affected device or connection with another computer or network when possible. This helps separate a Windows/software issue from a hardware or service issue.

Quick Checklist

Restart the computer or affected device.
Check cables, power and connections.
Check Windows settings and Device Manager where relevant.
Install trusted updates and drivers.
Back up important data before risky repair steps.