MacOS – “Startup disk” in “About this Mac”

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I noticed that on when I go into "About this Mac" on my iMac I see a parameter named "Startup disk" while on my MacBook I do not… Is this because I have multiple disks in my iMac and only one in the MacBook?

Best Answer

Yes, it's because the Mac sees multiple bootable disks.

Or multiple bootable volumes on the internal drive.

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MacOS – Can not set startup disk

From the errors given, it sounds like it's more about setting the NVRAM than the startup disk itself. Clear the NVRAM (previously referred to as PRAM; reboot holding command-option-P-R until you hear a second chime) and see if the problem works itself out.

MacOS – AppleScript to close “About this Mac” window

The window is shown by the loginwindow process, and you can close it by clicking the close button:

tell application "System Events" to tell process "loginwindow"
    click button 1 of window 1 -- or window "About This Mac"
end tell

close window 1 didn't work.

Best Answer

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