USB Device Keeps Disconnecting on Windows? Try These 11 Fixes

You plug in a USB mouse, flash drive, webcam, or external hard drive, and Windows keeps disconnecting it and connecting it again. Sometimes the device disappears for a few seconds. Other times, you hear the familiar USB connection sound again and again. Annoying? Absolutely.

A USB device that keeps disconnecting on Windows usually points to a loose or damaged cable, a faulty USB port, low power, a bad driver, or a power-saving issue. Test another port and cable first, then check USB power settings, update drivers, and test the device on another computer to find the real cause.

Find Out Why a USB Device Keeps Disconnecting on Windows

The important part is to find out whether the problem comes from the device, the connection, or Windows itself. Otherwise, you could spend an hour changing settings when a worn-out cable is the real troublemaker.

Why Does a USB Device Keep Disconnecting?

A USB connection needs three things to work properly: a solid physical connection, enough power, and working communication between the device and Windows. If any one of these fails, Windows may remove the device and detect it again.

Microsoft, Dell, and HP troubleshooting guidance points to the same useful starting checks: test the cable and port, remove hubs from the setup, check power, and then investigate drivers and Windows settings.

A loose, worn, or damaged USB cable.
Dust, damage, or a loose fit in the USB port.
Not enough power for the connected device.
A USB hub or docking station causing problems.
Windows power-saving settings interrupting the connection.
Outdated, damaged, or incorrect device drivers.
A problem with the USB controller or Windows itself.
A device that is failing or overheating.
A USB-C cable or port that does not support the device's needs.
A hardware or firmware issue with the computer.

The fastest way to narrow it down is to test one thing at a time. Start with the easy fixes below before changing advanced settings. Source: https://www.dell.com/support/kbdoc/en-in/000132048/how-to-troubleshoot-usb-issues

1. Check the USB Cable and Port

A damaged cable or loose port is one of the first things to rule out. If the connection drops when you move the cable slightly, a physical connection problem becomes more likely.

What to do

Unplug the USB device.
Check the cable and connector for bends, cracks, or other damage.
Plug it into a different USB port on your computer.
If possible, test it with another compatible cable.
Avoid moving the cable while testing.

For a desktop PC, try a USB port directly on the back of the computer rather than a front-panel port. Rear ports usually connect directly to the motherboard, which helps you rule out a front-panel cable or connection issue. HP also recommends testing a device directly on the computer instead of through a hub or dock.

What the result tells you:

If another cable fixes it, the original cable may be faulty.
If only one port causes the problem, that port or its connection may be damaged.
If the device disconnects on several computers, the device or its cable is a stronger suspect.

Do not put metal objects into a USB port or use liquid cleaners. If the port looks damaged or feels unusually loose, stop using it and get it checked.

Also Read: Why Wireless CarPlay Keeps Disconnecting and Reconnecting (And How to Fix It)

2. Connect the Device Without a USB Hub

USB hubs are useful when your computer runs out of ports. However, a faulty hub, loose hub cable, or lack of power can cause connected devices to drop out.

How to test it

Disconnect the device from the USB hub or docking station.
Connect it directly to the computer.
Leave other USB accessories unplugged for a short test.
Check whether the device stays connected.

If it works directly but disconnects through the hub, the hub, its cable, its power supply, or the number of connected devices may be the cause.

This matters most for devices that use more power, such as external hard drives, webcams, and multi-device docks. A powered USB hub may help when the devices need more power than the computer or unpowered hub can provide.

3. Check Whether the USB Device Has Enough Power

Some USB devices need more power than a port can safely provide. Windows may show a warning such as “Power surge on the USB port” or report that the device needs more power.

Try these fixes

Connect your laptop to its charger.
Unplug USB devices you are not using.
Connect the device to another USB port.
Use the device's own power adapter if it has one.
Try a suitable powered USB hub for devices that need extra power.

If the device works when the laptop is plugged in but disconnects on battery, power limits or power settings may be involved.

Do not ignore a repeated power-surge warning. Disconnect the device and check the cable and device before trying again. A faulty accessory can cause the warning, and a damaged port needs attention.

Also Read: 12 Reasons G-SYNC or FreeSync Isn't Working (And How to Fix Them)

4. Stop Windows From Turning Off the USB Device

Windows has power-saving features that can reduce power use when a USB device is idle. In some cases, a device or its driver may not resume properly, causing the connection to drop or the device to disappear and return.

Microsoft calls one of these features USB selective suspend. It lets Windows suspend an idle USB device without shutting down every other device connected to the same USB hub. Microsoft recommends keeping this feature enabled in normal use because it helps save power. Source: https://support.microsoft.com/en-us/windows/hardware/usb/fix-usb-c-problems-in-windows

Turn off power saving for the USB hub

Press Windows + X.
Select Device Manager.
Expand Universal Serial Bus controllers.
Open the properties of a listed USB Root Hub or similar USB hub entry.
If a Power Management tab appears, look for Allow the computer to turn off this device to save power.
Untick that box, if available, and select OK.
Restart your PC and test the device.

The tab or checkbox may not appear on every computer or USB device. If you have several USB Root Hub entries, you may need to identify the one linked to the affected device rather than changing every entry without a reason.

Test USB selective suspend

Search Windows for Edit power plan and open it.
Select Change advanced power settings.
Expand USB settings.
Expand USB selective suspend setting, if shown.
Temporarily set it to Disabled for the relevant power mode.
Select Apply, then OK, and test the device.

If the setting is missing, skip this step. Treat this as a test, not a permanent fix for every PC. Disabling selective suspend can increase power use, especially on laptops. If it makes no difference, restore the original setting.

Also Read: Why Windows Says “This App Can't Run on Your PC”

5. Update or Reinstall the USB Driver

A driver helps Windows communicate with a device. If the driver is damaged, outdated, or not suitable for the device, Windows may fail to recognize it properly or show repeated connection errors.

Update the device driver

Right-click the Start button and open Device Manager.
Find the affected device. It may appear under Universal Serial Bus controllers, Disk drives, Cameras, or another category.
Right-click it and select Update driver.
Choose Search automatically for drivers.
Follow any instructions, then restart the computer if needed.

Windows may report that the best driver is already installed. That does not always mean the manufacturer's latest driver is installed, so check Windows Update and your PC or device maker's official support page if the issue continues. Microsoft recommends checking Device Manager error codes when a USB device is not recognized.

Reinstall the device entry

Open Device Manager.
Right-click the affected device.
Select Uninstall device.
Confirm the action.
Unplug the device, restart Windows, and connect it again.

Windows may detect the device and install its driver again. For a special device such as a printer, audio interface, or webcam, follow the manufacturer's instructions if it needs its own software.

Be careful: Do not uninstall every USB controller at random. If you remove the wrong controller, your USB keyboard or mouse may stop working until Windows restores it.

6. Check for Windows Updates

A Windows update can include fixes for device compatibility, drivers, and other system problems. If the USB disconnects began after a recent update, the update or a related driver change may also be worth checking.

How to check for updates

On Windows 11:

Open Settings.
Select Windows Update.
Click Check for updates.
Install available updates and restart if asked.

You can also open Advanced options → Optional updates and check for relevant driver updates. Install only drivers that match your device or computer.

On Windows 10, the path is Settings → Update & Security → Windows Update. Standard Windows 10 support ended on October 14, 2025, so eligible devices should move to a supported version of Windows or use an appropriate extended security option.

If the problem started immediately after a driver or Windows update, check the device's driver properties for a Roll Back Driver option before making other changes. That option appears only when Windows has a previous driver available.

Also Read: Why Network Switches Between 4G and 5G Constantly?

7. Check the USB-C Cable, Port, or Dock

USB-C connectors can look identical while supporting different features. A cable may support charging but not the data speed or display features your device needs. Some docks also require a compatible USB-C port.

Try these steps

Connect the device directly to the PC.
Use the cable supplied with the device, or a certified cable that supports its needs.
Try another USB-C port that supports the required function.
Check whether the device needs Thunderbolt, USB4, or a specific USB-C feature.
Connect the PC to power if the device draws a lot of power.

For example, if an external SSD disconnects through a dock but works directly from the laptop, the dock or its cable may be involved. If it disconnects through every port, test the SSD and its cable on another computer.

Do not assume that every USB-C port supports video, Thunderbolt, USB4, or laptop charging. The connector shape alone does not tell you which features the port supports.

8. Check the USB Device for Errors

Windows may show a warning if a device has a driver or hardware problem. Checking the error message can help you avoid trying random fixes.

Find the error code

Connect the USB device.
Open Device Manager.
Look for the device with a yellow warning icon.
Right-click it and select Properties.
Check the Device status box for an error code or message.

Here are a few messages you may see:

Error message	What it may mean
USB Device Not Recognized	The device, driver, cable, or port may have a problem.
Device Descriptor Request Failed	Windows could not read information from the USB device.
Code 10	The device or its driver could not start.
Power Surge on the USB Port	A device may be drawing too much power or may have a fault.
USB device needs more power	The PC or hub may not supply enough power.

These messages point to possible causes, not always the exact fault. Use them alongside cable, port, and device tests.

9. Update Your PC's USB and Chipset Drivers

If several USB devices keep disconnecting, the issue may be with the computer rather than one accessory. The USB controller and chipset drivers help the PC manage its USB ports.

What to do

Visit your computer manufacturer's official support website.
Search using your exact PC or laptop model.
Check for available chipset, USB, BIOS, or firmware updates.
Read the instructions and install only updates meant for your model.
Restart and test the affected device.

Do not download drivers from random websites that promise to fix every driver problem with one click. Start with Windows Update or your PC maker's official support page.

BIOS warning: A BIOS update can fix some hardware issues, but it is not the first thing to try. Use it only when the manufacturer recommends it for your model or the other checks point to a firmware issue. Follow the update instructions carefully and keep the computer connected to reliable power.

Also Read: Windows Detects Webcam but Apps Cannot Use It? 11 Fixes

10. Test the USB Device on Another Computer

This is one of the most useful checks because it helps separate a device problem from a Windows problem.

Follow this test

Safely eject the device if it stores files.
Connect it to another computer using the same cable.
Use it for a few minutes or long enough to repeat the problem.
If possible, try a different compatible cable as well.

Read the result:

It disconnects on both computers: The device or cable may be faulty.
It works on the other computer: Your original PC, its USB port, drivers, or power settings may be responsible.
It works with another cable: Replace the original cable.
It works directly but not through a hub: Check the hub, its power supply, and its cable.

If the device is an external hard drive or USB flash drive, protect your files before doing anything more advanced. If the drive repeatedly disappears during file transfers, stop copying important data until you have checked the cable and drive health.

11. When Should You Suspect a Hardware Problem?

Software fixes will not repair a broken connector or a failing device.

Hardware is more likely to be the cause if:

The connection drops when the cable moves.
The USB connector feels loose.
The device disconnects on multiple computers.
The same port fails with several known-good devices.
You see bent pins or visible damage.
Windows repeatedly reports a power-surge error.

If a USB port is damaged, stop using it. Do not bend its pins back with a tool or try to force a connector into place. A repair shop or your computer manufacturer's service team can check the port safely.

Quick Troubleshooting Checklist

If you want to find the cause without wasting time, follow this order:

Connect the device directly to another USB port.
Try a different compatible cable.
Disconnect the USB hub and other accessories.
Connect the laptop to its charger if power may be limited.
Test the device on another computer.
Check Device Manager for error codes.
Update the device driver and Windows.
Test USB power settings if the issue continues.
Check official chipset or firmware updates if multiple devices fail.

Final Thoughts

When a USB device keeps disconnecting on Windows, don't jump straight to advanced driver fixes. Start with the cable, port, power supply, and USB hub. These quick checks can help you find the cause without changing settings that were working fine.

If the physical checks don't help, move on to Device Manager, power management, Windows updates, and the manufacturer's driver tools. Test one change at a time so you know which fix actually works.

Also Read: Useful Windows CMD Commands That Every User Should Know

Frequently Asked Questions

Why does my USB device connect and disconnect repeatedly?

Common causes include a loose cable, a faulty USB port, insufficient power, a USB hub problem, driver errors, or power-saving settings. Test another port and cable first, then connect the device directly to the PC.

Can USB selective suspend cause disconnects?

It can contribute to problems with some devices or drivers when they do not resume correctly. You can temporarily disable it to test, but Microsoft recommends keeping it enabled during normal use because it saves power.

Why does my USB device disconnect when I move the cable?

A damaged cable, worn connector, or loose USB port may be causing the connection to break. Test another cable and port. If the port is physically damaged, stop using it and get it checked.

Why does my external hard drive keep disconnecting from Windows?

Possible causes include a faulty cable, insufficient power, a USB hub problem, or a failing drive. Connect it directly to the PC, use the correct power supply if needed, and back up important files if the drive remains accessible.

Should I uninstall all USB controllers in Device Manager?

No. Start by updating or reinstalling the affected device's driver. Removing USB controllers without a clear reason can temporarily disable connected devices, including your keyboard or mouse.

How can I tell if the USB port is damaged?

Look for visible damage, a loose connector, or repeated failures with multiple known-good devices. If one port fails but another works, the faulty port or its connection may be the cause.