i cant login to my mcbook air because of arrow in box
I can’t log into my MacBook Air, there is a box with an upward arrow after login prompt
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That means a Shift key has been pressed or the Caps Lock key is "on".
The Caps Lock LED status may not be accurate when initially turning on your Mac; in other words it may be illuminated when Caps Lock is actually "off" and vice versa. Try pressing it once and determine if the "up arrow" goes away.