Windows 11 USB Device Not Recognized: How to Fix It

The Windows 11 “USB device not recognized” message means Windows noticed something plugged in but could not identify it or load a working driver. In Device Manager it often shows up as “Unknown USB Device” with a description such as “Device Descriptor Request Failed”. The cause can be the device, the cable, the port, power, or a driver, so the trick is to narrow it down before changing anything. These steps apply to Windows 11 version 24H2 and 25H2 on Home and Pro.

If the device is a drive holding important data and it is making clicking or grinding noises, stop here. Repeatedly reconnecting a failing drive can make recovery harder.

1. Find out where the fault is

Spend two minutes on these checks first. They tell you whether to troubleshoot Windows at all.

1. Try another port, plugged directly into the PC rather than a hub, dock or front-panel port. On a desktop, the ports on the back connect straight to the motherboard.
2. Try another cable. USB cables fail often, and many USB-C cables are charge-only or support only slow data.
3. Try the device on another computer. If it fails there too, the device or cable is faulty.
4. Try a different device in the same port. If nothing works in that port, the port may be damaged or disabled.

Result	Most likely cause
Device fails on every computer	The device or its cable
Device works elsewhere, fails on every port of this PC	Drivers or Windows on this PC
Only one port fails	That port, or the hub or front-panel connection behind it
Works directly, fails through a hub or dock	Power or bandwidth limits of the hub or dock

2. Restart properly and update Windows

Unplug the device, then use Start > Power > Shut down, wait a few seconds and power on. Reconnect the device once you are signed in.

Next, open Settings > Windows Update, install everything, and look under Advanced options > Optional updates for driver updates. Many USB problems on laptops are fixed by chipset, USB or Thunderbolt drivers and firmware (BIOS/UEFI) updates from the PC maker’s support page for your exact model. Keep a laptop plugged in during firmware updates.

3. Read the error code in Device Manager

1. Right-click Start and choose Device Manager.
2. Look under Universal Serial Bus controllers, Other devices and the category for your device (for example Disk drives or Keyboards) for an entry with a yellow warning icon.
3. Right-click it, choose Properties, and read the message under Device status on the General tab.

Microsoft’s list of Device Manager error codes explains each one. Common examples:

• Code 43 (“Windows has stopped this device because it has reported problems”): the driver reported that the device failed. Reinstall the driver, try another port and cable, and check with the device maker.
• Code 28 (“The drivers for this device are not installed”): install the driver, from Windows Update or the device maker.
• Code 10 (“This device cannot start”): update or reinstall the driver.

4. Reinstall the device driver

Reinstalling clears a corrupted or mismatched driver.

1. In Device Manager, right-click the failing device and select Uninstall device. If offered, leave “Attempt to remove the driver for this device” unticked unless you know you want the driver deleted.
2. Unplug the device and restart the PC.
3. Plug the device back in. If Windows does not pick it up, open Device Manager and select Action > Scan for hardware changes.

If every USB port misbehaves, you can also uninstall the entries under Universal Serial Bus controllers (USB Root Hub and host controller entries) and restart, and Windows reinstalls them. Your USB keyboard and mouse will stop working until the restart, so be ready to restart with the power button if you need to.

5. Check power and power-saving settings

Some devices, such as external hard drives and webcams, draw more power than an unpowered hub or a laptop on battery can supply comfortably.

• Plug the laptop into its charger and use a powered hub or the drive’s own power supply where it has one.
• In Device Manager, under Universal Serial Bus controllers, open the Properties of each USB Root Hub. If there is a Power Management tab, clear Allow the computer to turn off this device to save power, which helps devices that disconnect after a period of inactivity.
• Windows 11 has USB settings at Settings > Bluetooth & devices > USB, including Connection notifications. Leave notifications on so Windows tells you about USB problems.

6. USB-C notifications

On USB-C ports, Windows 11 shows specific notifications. Microsoft’s USB-C troubleshooting page explains each one; the main ones are:

Notification	What to do
USB device might need more power	Give the device external power, plug the PC in and disconnect other USB devices.
Use different USB port	Move the device to a USB-C port that supports its features, directly on the PC.
Display connection might be limited	The port, cable or display does not support video over USB-C (DisplayPort Alternate Mode).
Thunderbolt device functionality might be limited	Use a Thunderbolt port and a cable that supports Thunderbolt.
Slow USB charger / PC isn’t charging	Use the original charger and cable, and the USB-C port meant for charging.

7. USB drive detected but not in File Explorer

If a flash drive or external disk connects with the normal sound but never appears in File Explorer:

1. Right-click Start and choose Disk Management.
2. Find the drive by its size. If it has a healthy partition but no letter, right-click the partition, choose Change Drive Letter and Paths, select Add and pick a letter.
3. If it shows as Unallocated, or the file system shows as RAW, do not format it if you need the files. Formatting erases the contents; recover data first.

8. If Windows itself is the problem

If devices work on other computers but no USB device works properly on this one even after reinstalling drivers, check whether the problem also appears in safe mode. Run System File Checker to repair system files. If USB keyboards also fail in the firmware (UEFI/BIOS) setup screens, Windows is not the cause and the PC needs hardware repair; check the warranty before opening the case. For related issues, see the Windows 11 troubleshooting guide, and for printers on USB, our printer problems guide.