A device connected to the system is not working - what to do?

If the message "A device connected to the system is not working" is displayed on your PC under Windows, it is often a driver error. This article explains how to fix the problem and what other causes are possible.

A device connected to the system is not working: You can do that

• If you have connected external hardware to your PC and the message "A device connected to the system is not working" appears, you should install the current drivers for the corresponding device. Also check that your operating system is up to date. Otherwise, install all available updates.
• You can use the Device Manager in Windows for this. You will find detailed instructions on how to proceed in another separate practical tip.
• Alternatively, you can find current drivers for most devices on the manufacturer's website. You can usually install these manually using an EXE file.
• After installing the driver, disconnect the relevant hardware from your PC and restart the computer. Then connect the device again and wait a few seconds.

Solution: A device connected to the system does not work

• If the error message still appears after reinstalling the drivers, you should check the corresponding device. With many smartphones you have to select the setting "Connect as media device" and unlock the cell phone so that the PC can recognize it.
• Also try a different USB port. A faulty interface can also cause the error message. Also check whether the connected device is working properly and test connect it to another PC.
• In isolated cases, the problem also occurs with various programs that then no longer function properly. In this case it is recommended to uninstall and then reinstall the tool.
• In older versions of Windows, the error message sometimes appears for programs based on Virtual Basic 3.0. The problem also occurs occasionally in MS-DOS sessions. In this case, go to the Microsoft Support Center and follow the instructions accordingly.