Trouble trying to install Monterey on 2020 iMac

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DJoldguy Author

Level 1

8 points

Trouble trying to install Monterey on 2020 iMac

Install runs 24 hours then says error[%@]

iMac 27″, macOS 10.15

Posted on Feb 5, 2022 12:13 PM

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Answer 1

Top-ranking reply

rkaufmann87

Level 10

143,320 points

Feb 5, 2022 1:40 PM in response to DJoldguy

Please restart in Safe Mode and then attempt your download and install in Safe Mode. Please read the directions below:

Please restart the computer in Safe Mode per the directions in the How to use safe mode on your Mac - Apple Support link.

Note: If you are using a wireless keyboard please either plug it in using the supplied Lightning cable that shipped with it. If you are using a legacy keyboard or a third-party keyboard that does not have re-charging abilities, please use any USB keyboard. Also note that a Safe Mode restart may require you to hold down the shift key for up to 5 minutes before the computer starts in Safe Mode. You will know it is in Safe Mode when you see “Safe Mode” in the upper right of the display.

After restarting in Safe Mode, then restart normally and test.

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Answer 2

rkaufmann87

Level 10

143,320 points

Feb 10, 2022 11:04 AM in response to DJoldguy

Well before I ask for an EtreCheck report please try:

Look in your Applications folder to see if there is a Monterey install file. If there is double click it. If no such file exists then:

Unplug your modem from it's power source for 2-3 minutes and reboot.
Unplug your router from it's power source for 2-3 minutes and reboot.
Attempt to download and install Monterey

If that last step does not work please post an EtreCheck report:

It will help us get a good idea of what is causing your problem if you provide a report of your system, that way we do not have to play 20 questions with you. The report we are requesting does NOT provide any personal information and is extremely safe to use. Please navigate to www.Etrecheck.com and download the free version of EtreCheck. Once you have you downloaded the app and installed it, please run the report and save it.

When you have your report, you can attach it when you reply to this message and we can then review it and help you determine what is needed to get your system running well again.

For instructions on how to download your EtreCheck report and attach it to your reply to this message please click https://discussions.apple.com/docs/DOC-250000211

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Answer 3

DJoldguy Author

Level 1

8 points

Feb 11, 2022 11:37 AM in response to rkaufmann87

3rd time was a charm.The only thing I did before this attempt was install some updates on my Turbo Tax Program.Don't see how this would have impacted my 2 previous attempts but have Monterey OS now.Again Thanks from an old [76] man for all your help!

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Answer 4

DJoldguy Author

Level 1

8 points

Feb 13, 2022 8:44 AM in response to DJoldguy

Downloads For Mac OS

Took 3 tries to upgrade OS on iMac + Air Book.Knew to do security updates 1st but none showed till 3rd try.All good now.Also ran update on Turbo Tax which should not have mattered but downloads worked.Thanks to all for help!

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Answer 5

DJoldguy Author

Level 1

8 points

Feb 10, 2022 9:48 AM in response to rkaufmann87

Ran update for 24 hrs + still did not work.Got"The package install/Assistant.pkg fails to meet Gatekeepers policy" as I can complete Turbo Tax with Catalina this year.When I looked that up decided to try at a later date.Thank you for your info.Just need to back away for awhile.Maybe I'm too stupid to own a Mac!

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