|Toggling the Numlock key will probably not fix your problem.|
You probably either
- have your keyboard and/or language settings set wrong
Control Panel - Classic view - Regional and Language Options
Make sure your language and keyboard settings are set right.
If you have you computer set up to have Windows use more than one language, there may also be an icon in your taskbar where you can toggle the language / keyboard.
- or - a lot less likely - this is a laptop - you may have un-intentionally toggled some key or key combo that loads an alternate character set - see the User's or Owner's manual for the model.
Other possibilties ?
If you replaced the keyboard with one that has the wrong part number for where your model was sold, you could have this problem.