Windows 10: Keyboard keys in numeric pad are not working

I don't know why but 6 keys in numeric pad are not working4,5,6,/,*,- please help me how to fix this issue

thanks in advance

:)

 

Mathematical keys on numeric pad on Microsoft keyboard no longer working.

The following keys do not work on the numeric pad: / * + -.

I replaced the keyboard and it made no difference. I had the drivers updated but it also made no difference.

I really hope somebody can suggest a solution.

 

Key pad boars, numeric key

Do not seam to work. This is my problem:

I can write numbers using the key board numbers key line, but I can not do it using the numeric Key pad integrated in the key board.

I have the same problem in four different Laptops. The numeric key pads is not working,
only to write number. It does work for arrow left & wright ect. The four Laptops are, Levono, HP, Surface 3 (External Numeric Key Pad) and the brand new Dell,

This is the problem:

I just purchase the new DELL laptop and when it finish loading everything and took my safety photo, and I write my PIN using the numeric key pad, everything work fine. then I receive a computer message at the screen "One Windows update is waiting".
I punch to install the update and after it finish is when I have the problem. It is not the numeric key, not external software installed by me, because I did not install any. I think that it has to do with the Windows update. The new DELL Laptop is now
at the Geed Squat of Best Buy. The will return it next Wednesday.

Thanks.

 

Keyboard Numeric Pad

Numeric Key Pad does not work for Numbers and that is true for 5 different Keyboards attempted. Some Wireless and some tethered. Must be a Win 10 glitch. Any Solutions?