Method 1:- Reboot your PC

The first method which comes to my mind to fix this kind of weirdest issues.
When these types of errors pop up over and over again, rebooting sometimes tends to fix the issue.
As because when you use your computer for a longer period of time the processor becomes lag and there is a huge chance of encountering these kinds of errors.
It is often seen that users use to open the internet browser or play games for hours.
As a result, what happens, the more background processes run in the background of your system which as a result shows you these types of technical errors.
So, restarting your computer will eventually stop the processes from working and the issue will get automatically fixed.
Therefore, if you face these kinds of issues, try restarting your computer.
Method 2: - Check your Connecting Cable

As I have mentioned above that a defective Cable might be one of the reasons behind the 'A Device Attached To The System Is Not Functioning' issue.
Therefore, if the error is popping up over and over again then you need to make sure whether the cable is properly functioning or not.
One of the easiest methods to check the condition of your cable is plugging the cable in another device.
If the same issue is popping up over and over again then the issue is with the cable only and you need to change the cable as soon as possible.
Moreover, you can also plug the cable in another port of the same computer.
Check for more.
http://techstuffsarena.com/2019/07/2...t-functioning/