Right-click on the Start button and click on Device Manager. Wait for the Troubleshooter to find and fix Keyboard related problems on your computer. On the next screen, click on Keyboard and then click on Run the Troubleshooter. In the right-pane, scroll down and click on Additional Troubleshooters. Go to Settings > Updates and Security > click on Troubleshoot in the left pane. Wait for Windows to check for available updates and install them on your computer. In the right-pane, click on Check for Updates button.

Go to Settings > Updates & Security > select Windows Update in the left-pane. The problem could be due to a pending Windows update being downloaded, being installed or waiting to be installed on the computer. If USB Port/Ports are not working, you should be able to fix the problem using troubleshooting steps as provided in this guide: How to Fix USB Ports Not Working in Windows 10 3. This can be confirmed, by checking if the USB Ports on the computer can recognize other USB devices.

Sometimes, the problem is due to a particular USB Port or all USB ports not working. Restart your computer and see if the USB Keyboard is now working. Go to Settings > Ease of Access > select Keyboard in the left pane and Turn OFF Filter Keys in the right-pane. The Filter Keys function in Windows 10 is also known to cause keyboard problems.

Usb port error malfunction