Why my computer is typing two different letters at the same time

[cramessar]

when certain keys are pressed several keys are pressed at the same time. there are corresponding keys and the coupling is not random.

r=gr
g=gr
h=hu
u=hu
p='p
'='p
o=o+ toggle of full screen mode
backspace= backspace + up key

can anyone help

 

[mcnumpty23]

try cleaning the keyboard with compressed air or a small paintbrush--sometimes stuff gets under the keys

 

[Tillsmin]

Press Ctrl+X then restart computer.