If your USB drive is detected by the computer but does not appear in File Explorer, this guide will help you find the cause and fix it. These steps are safe and work on all versions of Windows.
Quick Checks
- Try a different USB port
- Restart the computer
- Test the USB drive on another PC
- Check if the drive lights up or spins (if applicable)
Disk Management Checks
- See if the drive appears without a drive letter
- Assign a drive letter
- Check if the drive shows as unallocated
- Check if the drive shows as RAW
- Check if the drive is offline
Device Manager Checks
- Look for driver errors
- Update or reinstall USB drivers
- Scan for hardware changes
- Disable USB selective suspend
Possible Causes
- Drive letter conflict
- Corrupted partition
- Driver issue
- Faulty USB port
- Fake‑capacity USB drive
Fixes You Can Try
- Assign a new drive letter
- Delete and recreate the partition
- Full format (not quick format)
- Rebuild the USB file system
More USB troubleshooting pages will be added as the site grows.