Reset my iMac

My iMac is slow and screen blurry. I would like to set it back to factory settings and start all over. How?

Posted on Sep 4, 2019 1:32 AM

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Posted on Sep 4, 2019 2:09 AM

step 6

What to do before you sell, give away, or trade in your Mac - Apple Support

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Top-ranking reply

Level 10

176,526 points

Sep 4, 2019 2:09 AM in response to Athens_Zouzou

step 6

What to do before you sell, give away, or trade in your Mac - Apple Support

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Level 10

131,144 points

Sep 6, 2019 4:20 AM in response to dialabrain

See: How to erase a disk for Mac - Apple Support

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Sep 6, 2019 2:11 AM in response to Rudegar

Hi, I reached to this level (see photo attached) and it looks like I can't go any further ...help!ther ...help!

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Level 10

131,144 points

Sep 6, 2019 4:19 AM in response to Athens_Zouzou

You need to select the top level of the drive, Apple HDD… and erase it.

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Level 10

85,174 points

Sep 6, 2019 4:46 AM in response to Athens_Zouzou

You can not erase the disk while you are booted up from the disk. You must startup in macOX Recovery Mode, as per the link that dialabrain posted, then you can erase and reinstall macOS.

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Reset my iMac

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