macOS Monterey takes 25+ minutes to boot

Hi, I wonder if anyone else has the same issue:


Just updated to Monterey from Big Sur - and it takes forever to boot (25+ minutes). Already happened several times.


Before I go through the regular steps for slow boot troubleshooting, I wonder if others have the same issue? And possibly a solution?


iMac 2017 27" 40 GB; 180 GB free space

iMac 27″ 5K, macOS 12.0

Posted on Oct 27, 2021 6:20 PM

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Posted on Feb 24, 2022 2:53 AM

I did; my problem was a very slow internal drive. At 5400 RPM, the enrtry level HDD just wasn't up to the task.


Replacing use of the internal HDD with an external SSD as boot drive fixed it.


But, before I did that I confirmed the drive was the problem by running Etrecheck Pro I got from https://www.etrecheck.com/.

138 replies

Dec 22, 2021 9:52 AM in response to leobraun

My brand new MacBook Air M1 rebooted 4 times (until now) in a row after upgrading to Monterey. Each time it took about 5 minutes to do that, except the last on when after five minutes I got a message "about 11 minutes to go". Hopefully, this will work fine once done, but this is not seamles experinece Apple users are used to.

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macOS Monterey takes 25+ minutes to boot

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