There is NumPad section on keyboards.
There are double function of buttons on NumPad.
For example a button on the NumPad function 1 is "delete" function 2 is "comma"
When you press "CTRL + ALT + Num Lk" you switch function 1 to 2 for all of these buttons.
Normally I've been using function 1 set for these buttons. When I need to use function 2 I switch the mod by hitting "CTRL + ALT + Num Lk".
However on every restart "function 2" comes as default function set for NumPad buttons.
How to set function 1 for as default?