Mouse + keyboard do not work at the same time?

I have a problem. I can't use my mouse when I press the keyboard at the same time. (Conversely, this problem also exists)! Can someone help me? It really bothers me now. Be it while working or playing. Incidentally, my laptop is running on Windows 10.

Maybe check if the drivers of your keyboard (or mouse) are up to date.

Uninstall the drivers in the device manager, restart the computer.