Question marks on login screen
Does anyone have a fix for question marks showing up as fonts on my login screen? I have a MacBook Air. It seems to do this when my machine is running slow. Thank you, Rick.
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Fix Font Corruption
Open Terminal in your Utilities' folder and paste the following after the prompt:
fontrestore default
Press RETURN.
If this doesn’t fix the problem then paste the following after the prompt:
sudo atsutil databases -remove
Press RETURN.
You may need to restart the computer for anything to take effect.