If you are trying to connect your mobile or external device to your Windows 10 computer but suddenly encountered an error saying, “A device attached to the system is not functioning”, read on as this post will guide you on how you can resolve this error using a couple of potential fixes. In this case, it is possible that the connected device is not working for some reason and this error pops up when you connect your device or when you try to move or copy files from your computer to your external device and vice versa.
As you can see, the error message is pretty straightforward, and it mostly occurs when you connect plug and play devices such as USB drives, printers, external storage devices, and many more. And when you open the Device Manager to check the device, you will most likely see a yellow exclamation mark on the device which indicates that the device is currently having problems. To fix this problem, there are several options you can check out. You need to check the status of the device or check the compatibility between the external device and the drive types. You also have to make sure that the device is connected properly or check if the device has been formatted properly. For more details, follow the given suggestions below.
The first thing you can do to get rid of the error is to check the status of the external device, especially if it’s a plug-and-play device. So when your computer boots, check if it is able to detect the device or not.
As you know, when you connect an external device to your computer, Windows installs drivers to communicate with the device, the same way as any hardware you connect to the motherboard and if the driver ends up getting corrupted or is incompatible, then you need to update the device driver. To do that, follow the steps below.
Note: If updating the device drivers didn’t work, you can try to reinstall them instead.
The first thing you have to do before you further troubleshoot the problem is to check the hardware connections of your computer and see if there are damaged ones, just like with USB ports, it would also affect the overall connectivity of the device with the computer. So if you notice some irregularities in the connecting cable physically, you might have to buy another one and replace it and then see if it fixes the problem or not.
You might also want to check if the external device is properly formatted especially if you’ve recently formatted it. If a device wasn’t formatted properly, then it’s no wonder why you’re getting the “A device attached to the system is not functioning” error. To fix this, you need to use Disk Management. From there, you can find the devices connected but are not visible. If you are using an admin account, then to fix this error, you have the option to format the drive or create new partitions using the interface. Once you do this, it should resolve the problem.
If a third party program like antivirus is the one that’s causing the problem, you can try to put your computer in a Clean Boot State to isolate the issue by following these steps:
C0000135 is a blue screen of death error code (BSoD) also referred to as the ‘Stop’ error. This error code usually pops up on the screen at startup. The system stops and displays the error code:
Stop: c0000135 {Unable to Locate DLL} The dynamic link library FILE_NAME could not be found in the specified path Default Load Path