iMac goes blue screen at start

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Grasmere


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When I turn on my iMac it immediately goes blue screen. Any advice on what to do or how to go to settings? Thanks
 
chscag

chscag

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Your Mac's Specs
2017 27" iMac, 10.5" iPad Pro, iPhone 8, iPhone 11, iPhone 12 Mini, Numerous iPods, Monterey
We need more information. Does your iMac POST (bong noise) before it goes to the blue screen? Have you tried to start it in safe boot mode (hold down shift key while booting)?

Also post the year and model iMac you have and which version of OS X it's running.
 

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