V klávenici by snáď nemala byť chyba...
Ešte k tomu BIOS-u:

v Biose musíš mať zapnutý Advanced Mode, nie EZ mode...
rýchly návod:

Advanced Mode: If you are in EZ Mode, press F7 to enter Advanced Mode.
Boot Settings: Navigate to the Boot tab.
NumLock Setting: Find the setting labeled "NumLock State at Boot" or "Boot NumLock State" and set it to On or Enabled.
Save and Exit: Press F10, select "Save & Reset," and choose "Yes" to restart.