All the letters Upper & lower case type correctly but like the number 5 across the top types a b and 6 types an n. In the numeric keypad the 1 types a 0 zero the minus symbol types a plus symbol and the symbol keys at the end of the letters don't work at all so it's very random. I was told this was a virus but I did a complete scan AND I have virus protection , malware , etc I saw one other solution that said to unplug computer and take the battery out then replace it and plug back in to reboot computer. I haven't tried this yet. Anybody know if this will fix the issue (question mark key doesn't work}. I also checked settings and the only keyboard listed is US and English.