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So, yeah.
num lock, caps lock, scroll lock
on the top right corner of your keyboard there are 3 led which glows on the 'ON' of few buttons like the first one is for num lock, second one is for caps lock and 3rd one is for scroll lock
To turn on the number lock (Num Lock) on a Dell Latitude E5540, locate the "Num Lock" key on the keyboard, which is typically found in the top row of keys or as a secondary function on the "F11" key. Press the "Num Lock" key to activate it. You may see a light indicator on the key or keyboard itself confirming that Num Lock is enabled. If your keyboard has a numeric keypad, the numeric functions will now work.
turn the "num lock" off.
a computer keyboardKeyboard/Typewriter
There is a button that says "num lock" on top of the numbers on the right side of the keyboard. Hit that and your computer will go into number lock.
you press num unlock
the caps lock,num lock,or the scroll lock.
Some keyboards have and don't have the Num Lock key. If there is then just press the Num Lock or NmLk key. Sometimes you have to hold the Fn button with the Num Lock key. If there is no Num Lock key on your keyboard then just follow these steps: START -> ALL PROGRAMS -> ACCESSORIES -> ACCESSIBILITY -> ON-SCREEN KEYBOARD -> NLK.
It is the key marked: Num Lock. There should be a light showing on the keyboard when the Num Lock has been pressed and the numeric keypad can be used.
To deactivate the number lock (Num Lock) on a Dell laptop, you can typically press the "Num Lock" key, which may be labeled as "Num Lk" or similar, found on the keyboard. If your laptop does not have a dedicated Num Lock key, you may need to use a combination of the "Fn" key and another key that has the Num Lock function (often indicated by a small icon). Additionally, you can access the BIOS settings during startup (by pressing F2) to change the Num Lock setting to be off on boot.
The Difference Is That One Keyboard Has Numbers On The Right hand side. u press num lock to activate it.