Why is there a boot menu every time I turn on MacBook?
How to fix this?
Every time when I turn on my macbook pro mid 2014 I have to choose my startup disk to continue with booting. It behaves as if I am holding the option key...
However, the right option key doesnt work when I want to use it in the OS.
When I turn on MP and hold the left option key it starts booting without the boot menu, when I do not hold it it shows the menu.
When I hold the right option key there is no difference.
I have tried apple diagnostics and it shows that everything is ok.
Tried resetting SMC and PRAM and doesnt work.
Running MacOs High Sierra
3.4千 
1.1千 
2.6千 