IMac 21.5” will not complete boot up. Shutdown before login screen
How can I fix this?
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Hi BjornstadFægir4744,
Welcome to the Apple (user-to-user) Community.
Re: How can I fix this?
Apple support have a few articles online (links below) that may help:
Learn what to do if your Mac doesn't turn on or start up
or
What to do: If your Mac doesn't start up all the way – Apple Support
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If needed:
You might want to reach out to the iMac Support Team
There is a "Get Support" link at the bottom of their webpage (link below)
or
Apple phone numbers around the world:
Contact Apple for support and service - Apple Support
All the best :-)