Today we will talk about an issue of USB devices that many users has encountered.
The symptom is when you connect a USB device to windows7 laptop, system will pop up a message “One of the USB device attached to this computer has malfunctioned, and Windows does not recognize it”.
In addition, you can find an error code 43 in device manager “Windows has stopped this device because it has reported problems. (Code 43)”.
This is a very common error code and the cause may not be determined easily. We provide some general troubleshooting steps, hope it’s helpful.
Try the steps below:
1. Make sure you update to latest BIOS.
2. Reinstall USB controllers
First, please disconnect all USB devices and then perform the following steps:
a) Click “Start” button, type “devmgmt.msc” (without quotation marks) in the “Search” bar and press “Enter”. Click “Continue” if necessary.
b) In Device Manager, double click to expand “Universal Serial Bus controllers”, right click on the Host Controller, click “Uninstall” and click “OK”.
c) Repeat the step 2 to uninstall all items under “Universal Serial Bus controllers”.
Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.
3. If the above steps cannot resolve the problem, try the steps below:
a) Turned the laptop off, unplugged it.
b) Pulled out the battery for a few minutes.
c) Then power on the laptop.
Make sure the USB device is working, try changing to another USB port.
5. Also, you can try in-place upgrade your system or system restore from the Windows Recovery Environment (WinRE)
At boot-up, Hit F8 –> Repair –> System Recovery Options Window –> System Restore.