Why is my USB flash drive not showing up on my computer?

The most common causes are missing drive letter assignment, a corrupted USB driver, or USB power saving settings. Try Disk Management and Device Manager solutions first.

How do I fix USB Device Not Recognized?

Open Device Manager, find the device under Unknown Devices or USB controllers, right-click it, and choose Update Driver or Uninstall, then reconnect the drive to trigger automatic reinstallation.

Can I fix a flash drive that doesn't show up without losing data?

Yes. The Disk Management and Device Manager methods do not affect data on the drive. Formatting should be a last resort as it erases all data.

What if the drive doesn't appear in Disk Management either?

If the drive doesn't appear anywhere in Windows, it likely has a physical hardware failure and may need to be replaced.

Can viruses cause a USB drive to not show up?

Yes. Some viruses hide flash drive contents or block recognition. Scan the drive with a trusted antivirus program after resolving the display issue.

Fixing the "USB Device Not Recognized" Error on Your Computer (2026)

28/03/2026

How to Fix USB Flash Drive Not Recognized or Not Showing on Windows — Complete Guide 2026

A USB flash drive or SD card reader not being recognized by Windows — showing the USB Device Not Recognized error — is a common problem that is usually fixable with a few simple steps. This guide covers the most effective solutions in order of simplicity.

Fix 1: Assign a Drive Letter via Disk Management

Press Windows + R, type diskmgmt.msc, and press Enter. If the flash drive appears in the list without a drive letter, right-click on its partition, choose Change Drive Letter and Paths, click Add, select an available letter, and click OK. The drive should now appear in This PC.

Fix 2: Update or Reinstall USB Driver via Device Manager

Press Windows + R, type devmgmt.msc, and press Enter. Locate the device under Universal Serial Bus controllers or Other Devices (it may appear as Unknown Device). Right-click it and choose Update Driver → Search automatically for drivers. Alternatively, choose Uninstall device, then disconnect and reconnect the flash drive to let Windows reinstall the driver automatically.

Fix 3: Disable USB Selective Suspend

In Device Manager, expand Universal Serial Bus controllers, right-click USB Root Hub → Properties → Power Management tab → uncheck Allow the computer to turn off this device to save power → click OK. You can also go to Control Panel → Power Options → Change plan settings → Change advanced power settings → expand USB settings → USB selective suspend settings → set both options to Disabled.

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