Keyboard or Mouse Is Not Working in Windows
Reconnect the device
Unplug the keyboard or mouse and reconnect it.
Try another USB port if possible.
Restart Windows
A restart can reload USB and HID drivers.
Check Device Manager
Look under:
Keyboards
Mice and other pointing devices
Human Interface Devices
Check for warning icons.
Test another device
Connect another keyboard or mouse.
If the replacement works normally, the original device may have a hardware problem.
For wireless devices
Check:
Battery level
USB receiver
Bluetooth connection
Pairing status
Install manufacturer software
Gaming peripherals may require software from manufacturers such as Logitech, Razer, Corsair, SteelSeries, or others.
Download software only from the manufacturer's official website.