Mavericks, MacAir11
My built-in keyboard suddenly does not work anymore. Even when I did not turn on caps lock it stills capitalize all letters for me. I relogged but does not work. This makes me unable to enter the password of my Mac correctly and leads to the second problem. I don't know if it's because the keys are malfunctioning or I get infected by a virus.
As I cannot log in into my Mac, I have to log in using the Guest User account. But this happens:
And it made an infinite loop.
I did not make any modifications to the OS itself.
Any suggestions why this is happening, and how can I fix this problem?
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