- Open 'Run' and type 'regedit' and press enter...
- Select 'HKEY_CURRENT_USER' from the left pane...
- Select 'Control Panel'...
- Select 'Keyboard'...
- Double click on 'InitialKeyboardIndicators'...
Enter '0' to turn OFF Num lock after logon...
Enter '2' to turn ON Num lock after logon...
Enter '1' to disable Num lock...