How use num pad with no numlock key

[Rowan]

My keyboard has a numeric keypad, but no NumLock key. How do I use the num pad? At present the keys do funny things (jump between windows etc.) which presumably means they are not in numlock mode. Maybe there should be a LED when in numlock mode ? There is curently no such LED alight. How do I gfet into numlock mode?
My computer is a Dell XPS8700 running W10.
Thank you - Rowan

 

[Riley337]

Select the "options" key, then tick "turn on the numeric keypad," then a NumLock button appears in the bottom right-hand corner of the onscreen keyboard, click it to turn on num lock and use a plug-in keypad for numbers, or turn it off to use the keypad as arrow keys to navigate about.

 

[Grizzly]

It may be easier to help if you tell us what keyboard you have instead the computer model. Since this is a desktop you can basically use any keyboard there is. A picture of your keyboard may help us to help you.