Keyboard typing wrong letters

[Bitkevicius]

I was playing when accidentally i pressed something on the keyboard, and a red light appeared on keylock somehow i fixed it but now half of keyboard types wrong letter (for ex. j instead of f) please help me?!! Language settings and reinstalling keyboard didnt work..

 

[GeRgY]

Control Panel --> Search "languages" --> Click "Change keyboards or other input methods" --> Click the button that says "Change keyboards"
If you see anything other than plan "US" or "English" under "Installed Services", remove it.