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We the experts here at FixYa aren't that much expert to read the jumbled words. Well, it seems like you are having trouble writing with the keyboard, or keypad you are using. Well, try changing the keyboard/ keyboard port, and in case of Laptop, remove the keypad, by opening the keypad screws front the base, open the keypad strip and re-insert it after cleaning it with some cleaning liquid used for electronics like CTC, or WD40. If the problem still persists, that the keypad/ keyboard needs to be physically examined.

Concerned.

Fn + Numlock should toggle it on and off

This is likely that the num lock on your keyboard is on this is often a problem on laptop keyboards to turn num lock off usually you will have to hold FN and press num lock to toggle the function.

I had same problem over the weekend. press Fn key and F11 and keyboard should come back working normally.

Some keyboards have a feature called "Number Lock" It is mostly found on laptops. But turn it off to regain your default keyboard. On most keyboards it is located near the screen shot, print screen buttons. Push your shift key and the NumLk/ScrnLk button, and your keyboard should return to default.

Hope this helps...... :)

Check you Num Lock & Scr Lock Keys, one at a time. This is a toggle key (1 press on, 2nd press off)
For laptops without a separate 10-key section, they allow users to switch to 10-key function for data entry etc.
That should take care of it.

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it seems that your num lock has get activated. look for nul lock on/off button and use it with fn key once

yaa bcoz you have made your Numlock On thats why keyboard gives you these characters. You can see a led 'on' on your keyboard near Num Lock.

To make it off press and hold Fn kye (left side bottom row of the keboard) and press Num Lock kye (Top row right side). It will make your Num Lock on/off.

Thanks
Iqbal