The main symptoms:
The USB keyboard cannot be used. After the keyboard is inserted, the computer detects that the device manager is as follows:
Some ergonomic input devices may have multiple USB input devices, vendor-defined devices that meet the hId standard, system controllers that meet the atId standard, and user control devices that meet the hId standard, as shown in the figure:
Possible Causes:
Carefully observe that there is a device in the ergonomic input device, and confirm that the US input device is a mouse through the hardware id, and the English device above is actually a keyboard, that is, the Windows system incorrectly recognizes the keyboard as another device.
solution:
Right-click HID-compliant device, uninstall the device, if there are multiple HID-compliant devices, delete multiple, leaving only one. , Right-click and select HID-compliant device-update the driver-browse the computer to find the driver software-choose from the computer's device driver list-select the USB input device-the next step to solve the problem.
1. Right-click and select HID-complaint device-update driver:
2. Browse the computer to find the driver software:
3. Choose from the list of computer device drivers:
4. Select the USB input device (sometimes the USB input device may not be searched, this time we want to select "Install from Disk" in the lower right corner, and then enter "C: \ Windows \ System32 \ Driverstore \ Filerepository \ input." "inf", input here, there will be a recommended path pop-up, we select the recommended path, click "OK" to continue the following operations):
5. Next step:
