I cant move my mouse when pressing a button on my keyboard

[bloodymoths]

hi, so im not the best with computer tech, and i only really know the basics. I would like to play multiple games, but I am unable to due to the fact I cannot move my mouse while typing or pressing a button on my keyboard.  I currently do not have an actual mouse, just a keyboard, and this has been annoying me a lot lately. I've gone through around 7 different articles on how to fix this but they are all from either 2015, or when i go into the mouse property settings, it says clickpad setting at the top, not device settings. Does anyone know how to fix this? If you do please let me know, ive ben struggling with this for a while 🙂

[bloodymoths]

I meant to say only I have a touchpad not a keyboard oops!