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I’m getting a prohibitory symbol on start up with my iMac 27 inch. I’ve tried resetting the ram and P ram on start up with no success. What can I try next?
iMac 27″, macOS 10.15
"If you still need help, please contact Apple Support."
From: If your Mac starts up to a question mark - Apple Support
I tried starting up using command-R with no luck. Now I’m getting a folder icon flashing with a? In it
prohibitory symbol on start up with my iMac.
