NumLock in off mode makes all keys to act as regular keys (that is, pressing 1 will print 1)īut if you switch on NumLock then the same keys will function as the keys of Num Pad in a desktop keyboard. The “NumLock” or “NumLK” key is used to activate or deactivate these functions. Num Pad functions in a laptop keyboard are built in the regular keys. How to Activate and Use Numeric Pad in Laptops?