There is no number lock key on the keyboard and you will not be able to turn on/Off the number from the physical keyboard. However, you can turn on the number lock using the on-screen keyboard.
Here is how it is done.
Click Start, type on-screen in the search field, then select On-Screen Keyboard from the search results list.
When the On-Screen Keyboard displays, click Options. ...
In the Options window, select Turn on numerickeypad , then click the OK button to save the change.
Let me know how it goes and you have a great day!
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The_Fossette I am an HP Employee
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