arrow keys are now w,a,s,d, wasd are arrow keys; need help

[niivniiv]

my arrow keys are now wasd how do i fix it
now i can't type without using the arrow keys
very inconvenient

 

[vesp3r]

Check out this thread http://www.tomshardware.co.uk/answers/id-2337152/arrow-keys-swapped-wsad-keys.html