I found solution to the problem, it works with my ASUS 1225B.
1. Uninstall Touchpad and keyboard drivers with delete option
2. Restart
3. Instal Synaptics TouchPad driver from Asus website
4. Instal KBfilter from Asus website
5. Instal Hotkey service from Asus website
6. Restart
The NumLock...