MacOs Finder CPU usage Very High,,,

Hi aa-Paris,

Thanks for posting in Apple Support Communities.

We understand that Finder is running your CPU usage higher. To address this behavior, restart your computer in safe mode. Limited startup items are allowed to run here and a health check is performed in safe mode. If the issue continues in safe mode, make sure that you have disabled security software and create backup of your mac. Continue with a reinstall of macOS.

1. Turn on or restart your Mac, then immediately press and hold the Shift key as your Mac starts up.

2. Release the key when you see the login window, then log in to your Mac. 

3. You might be asked to log in again. On either the first or second login window, you should see ”Safe Boot” in the upper-right corner of the window.

You can find these details in How to use safe mode on your Mac.

Regards.

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Hello ASTRO24

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Thanks for your reply - i've tried safemode and,,, Will need to reinstall MacOS.

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There are diverging opinions about what a "clean" installation is, and although the Apple migration assistant is really handy, i'm afraid i'll end up copying settings that will end up slowing down a new installation. Especially when i do not know what is causing my slow finder at the moment.

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Not sure if there is an article on how to best perform a clean installation of MacOS, so right now i'll try to save my calendar, contacts, browser bookmarks and passwords, mailboxes and rss subscriptions.... And reinstall all apps. Might be overkill, but seems the "clean" way to proceed.

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