How to always enable numlock by default on Windows 10?

First, head to HKEY_CURRENT_USER\Control Panel\Keyboard. Double-click the “InitialKeyboardIndicators” value in the right pane and set it to “2”.

Next, expand the “HKEY_USERS” folder. You’ll now need to repeat the above process several times, changing the InitialKeyboardIndicators value under each folder inside the HKEY_USERS folder.

Start by going to HKEY_USERS.DEFAULT\Control Panel\Keyboard, and changing the InitialKeyboardIndicators value to 2. Next, repeat the process for the folder below the .DEFAULT folder–it’ll start with an “S-“.

Repeat this process for the remaining folders inside HKEY_USERS, changing the Control Panel\Keyboard\InitialKeyboardIndicators setting under each one.

Next, shut down, then boot the computer back up again. When you reach the login screen, press the Num Lock key once to enable it. Don’t log into the computer. From the login screen, click the power button and select “Shut down” to shut down the computer again.

Boot the computer back up and Num Lock will be enabled on the login screen. It seems that this puts Fast Startup into a state where it will automatically enable Num Lock at every boot.

https://www.howtogeek.com/244606/how-to-enable-num-lock-automatically-when-your-computer-boots/

Well, I solved like this:

• Created a program to enable NumLock when run that runs without a window (https://github.com/brunolm/NumLock)
• Created a scheduled task
  • General
    • "Run only when user is logged on"
    • "Run with highest privileges"
  • Triggers
    • "On workstation unlock of any user"
  • Actions
    • "Start a program" (NumLock.exe)