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iMac slow after Catalina

HELP! Ever since I uploaded the new Catalina OS to my iMac, it has been running very slow. Not to mention I am getting the dreaded rainbow wheel of death for almost every task.

Posted on Apr 8, 2020 2:21 PM

Reply
2 replies

Apr 8, 2020 3:09 PM in response to Corona_2020

Download and run Etrecheck. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support  to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.


Copy the report



and use the Add Text button to include the report in your reply. How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report


IMPORTANT:


Before running Etrecheck assign Full Disk Access to Etrecheck in the app's Privacy preference pane so that it can get additional information from the Console and log files for the report:



ALSO IMPORTANT:



Then we can examine the report and see if we can determine the root of the problem.



iMac slow after Catalina

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