When you say 10k I assume you are referring to the numeric keypad.
Have you checked that the number lock is ON.
There is usually a light on the keyboard to show that number lock is on. (One of the LEDs will have something like num lk or a number next to it).
If the number lock is not ON, the numeric keypad will do other functions such as moving the cursor to the start or end of the line in a word processor program.
Try using the 1 and 7 keys in a line of text in Notepad. If the cursor moves to the start of the line or the end of the line, the keypad is OK, but the number lock is off.