If the number lock is active, the status indicator on your computer is lit. Press the "Num Lock" key to turn it off. The status indicator light should turn off when deactivated.

Many Lenovo ThinkPad laptops don't have enough space for a dedicated number pad, so they double-up a set of 12 keys on the right side of the keyboard. When the Num Lock function is enabled, these ...

I specifically bought a model with a number pad, since that is what I like to use. My Number Lock doesn’t stay on; every time I boot up, I have to remember to hit the NumLock key.

Click on it to open Keyboard Settings which is available in Ease of Access Toggle on the option Play a sound whenever you press Caps Lock, Num Lock, or Scroll Lock.