You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

iMac incredibly slow to boot even from external SSD

My 27" iMac purchased in 2020 is incredibly slow to boot whether from the internal Fusion drive or an external USB-connected SSD, by slow I mean 15 minutes. I have tried unplugging everything connected to it has made no difference. Neither Apple diagnostics or EtreCheck are showing any issues. I am completely confused - does anyone have any suggestions? This is currently with Ventura but was the same with previous incarnations of MacOS.

iMac 27″, macOS 13.2

Posted on Feb 27, 2023 4:09 AM

Reply
Question marked as Top-ranking reply

Posted on Feb 27, 2023 8:51 AM

plusmore57 wrote:

The Etrecheck report is there in a reply further up the message list in the reply to ksaro1


Thank you, I had missed that.



More than one antivirus app - This computer has multiple antivirus apps installed.


This almost guarantees trouble.


Antivirus software: Apple, Symantec, and Trusteer


Uninstall Symantec and Trusteer. They are conflicting with each other and the system security, and very likely causing severe system slowdown... while not actually improving the security of your mac.



You also have software from WD and from Seagate. Third party drive manufacturer software is not needed for your mac to use the drives, and often causes problems, especially if it's old.


[Loaded] LaunchAtLoginHelper (App Store - installed 2022-11-15)

Modern Login Item

/Applications/CleanMyDrive 2.app/Contents/Library/LoginItems/LaunchAtLoginHelper.app


Anything with "clean" in its name should be regarded with suspicion - and being from macpaw, the same who peddle the awful "cleanmymac"... I strongly recommend that you uninstall this.



All these "sync extensions" trying to sync to online content are likely to stall and cause your mac to beachball. There is a good chance that one or more is involved in the long boot times:


Finder sync extensions:

WDDesktop Finder Extension - /Library/Application Support/WDDesktop.app

Dropbox Finder Extension - /Applications/Dropbox.app

OneDrive Finder Integration - /Applications/OneDrive.app

Core Sync Helper - /Applications/Utilities/Adobe Sync/CoreSync/Core Sync.app

FinderSyncExtension - /Applications/Google Drive.app/Contents/Applications/FinderHelper.app


Similar questions

21 replies

iMac incredibly slow to boot even from external SSD

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.