Hello,
i`m suffering from strange virus , i make search about it in google and bitdefender but didn`t found any informatin
please check this picture

what to do please advise
this virus make harmful effect such as keyboard delaying, press for a wile still hass effect
when i press ( F ) button for 5 seconds, i get this result
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFf
f
how to fix this problem
thanks