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Fix: “A device attached to the system is not functioning” error in Windows 11

a device attached to the system is not functioning error

If you, like many other Windows users, have recently encountered thea device attached to the system is not functioning” error message in Windows 11, there’s probably a connectivity issue between your PC and a peripheral device. If you want to use that device properly and without any disruptions, you’ll probably want to deal with this error. Which is exactly what we’ll talk about in this article. 

What causes the “A device attached to the system is not functioning” error in Windows 11

The issue where “a device attached to the system is not functioning” can happen due to a variety of reasons, each impacting how the device communicates with your Windows system. Primarily, it stems from problems in the hardware connection, software conflicts, or system configuration errors.

Here’s a deeper look into why this issue occurs:

Hardware-related Causes:

  • Loose or Faulty Connections: If the device is not properly connected to the computer, or if there are issues with the cable (such as damage or wear), the system might not recognize the device correctly.
  • Incompatible or Faulty Hardware: Some devices may not be fully compatible with your system, or they might be malfunctioning due to internal defects, leading to recognition issues.

Software-related Causes:

  • Outdated or Corrupted Device Drivers: Drivers facilitate communication between your system and the attached devices. If these drivers are outdated, corrupted, or not installed correctly, it can prevent the device from functioning properly.
  • Software Conflicts: Occasionally, other software or drivers installed on your system can conflict with the device you’re trying to use, causing it not to work as expected.

System Configuration Issues:

  • Incorrect System Settings: Certain system settings related to USB ports or power management can affect how external devices are recognized and function. For example, the USB Selective Suspend feature might inadvertently disable devices to save power.
  • Corrupted System Files: System files are crucial for the operating system’s operation. If these files become corrupted, possibly due to malware attacks or system errors, it can impact the overall functionality of connected devices.

How to resolve the “A device attached to the system is not functioning” error in Windows 11

The error message “A device attached to the system is not functioning” in Windows can occur for various reasons, including hardware compatibility issues, outdated or corrupted drivers, or incorrect system settings.

Here are three effective solutions to address and resolve this issue:

1. Check the Hardware Connections

One of the first steps towards resolving the “a device attached to the system is not functioning” issue is checking the hardware connections. . This involves disconnecting and then reconnecting the device to ensure that the connection is secure and not loose. Loose connections are a common cause of this error, and simply reseating the cable can often resolve the problem.

Additionally, it may be a good idea to try using a different cable or port if available. Sometimes, the issue might not lie with the device itself but with the cable being used or the specific port on the computer. Switching to a different port or using a different cable can help determine if the problem is with the original port or cable.

2. Update Device Drivers

Outdated or corrupted drivers can cause devices to malfunction. Here’s how to update your device drivers:

  1. Open Device Manager by right-clicking the Start button.
  2. Locate the problematic device, which may be indicated with a yellow exclamation mark.update drivers in windows
  3. Right-click on the device and choose Update driver. Select Search automatically for updated driver software and follow the prompts.

Solution 4: Roll Back the Device Driver

If the error started appearing after updating a device driver, rolling it back to the previous version might help. Here’s how:

  1. Open Device Manager, right-click the problematic device, and select Properties.roll back drivers
  2. Go to the Driver tab and click on Roll Back Driver if the option is available.

Solution 5: Run System File Checker (SFC)

Corrupted system files can cause various device issues. Running the System File Checker can repair these files. Here’s how to do it:

  1. Right-click on the Start button and select Windows PowerShell (Admin) or Command Prompt (Admin).sfc scannow command prompt 16
  2. Type sfc /scannow and press Enter. Wait for the scan to complete and then restart your computer.

Solution 6: Reset the Device

You’d be surprised to hear that the simplest workarounds are often the most effective. In this case, we’re talking about resseting the device that causes the a device attached to the system is not functioning” error message in Windows 11. Some devices have a reset function that can resolve connectivity or functionality issues. Check the device’s manual for instructions on how to perform a reset.

Solution 7: Disable USB Selective Suspend Setting

The USB Selective Suspend feature can cause issues with connected devices by putting USB ports into a low-power state. Disabling this feature might help. Here’s how:

  1. Go to Control Panel > Hardware and Sound > Power Options.
  2. Click on Change plan settings next to your selected power plan, then click on Change advanced power settings.
  3. Expand the USB settings and then USB selective suspend setting. Set it to Disabled for both on battery and plugged in settings.
  4. Click Apply and then OK.

That’s about it. We sure hope at least one of these solutions helped you deal with the “a device attached to the system is not functioning” issue in Windows 11, and that you’re now able to use your peripheral device without any problems. 

Aleksandar Ognjanovic

Aleksandar Ognjanovic

Managing editor at Mobile Internist. @lemmingspain My fascination with mobile technology, particularly Android and iOS, began years ago and continues today. I'm captivated by the constant evolution in the smartphone industry and its impact on our daily lives, always anticipating the next big innovation. That’s the main reason why I found myself writing instructive content on the subject for users who are not as familiar with all the bells and whistles.
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