Reference

Checking the Caps Lock / Num Lock / Scroll Lock States

You can check if the keyboard is in the Caps Lock/Num Lock/Scroll Lock states by the indicator light of the keyboard and the icons in the notification area.

To check if the keyboard is in the Caps Lock state

Check if the Caps lock indicator light is on.

To check if the keyboard is in the Num Lock/Scroll Lock state

Check if the Num lock icon or Scroll lock icon in the notification area is green.

Hint

To make the Num lock icon and Scroll lock icon always visible in the notification area of the desktop, select in the notification area, select Customize..., and then change the behavior of the icons to Show icon and notifications.