Hi katyellen, welcome to the PCHF.
I believe you're using a laptop?
If you look at the bottom left of the keyboard, you will see between CTRL and ALT that there is a FN button.
On all laptops, there is a second function (FN) for each key on the F1-12 and right hand side of the keyboard. You will either see another key that has NUMLOCK written in blue somewhere on the keyboard, or if you're unable to find this, it might be F11 or look like a small calculator image.
Hold the FN button while tapping the numlock key, and this will fix your problem
