{"id":181638,"date":"2025-04-12T00:15:38","date_gmt":"2025-04-12T00:15:38","guid":{"rendered":"https:\/\/peraltafinancing.com\/apple-2\/corespotlightd-high-cpu-process-on-mac\/"},"modified":"2025-04-12T00:15:38","modified_gmt":"2025-04-12T00:15:38","slug":"corespotlightd-high-cpu-process-on-mac","status":"publish","type":"post","link":"https:\/\/fivemor.com\/?p=181638","title":{"rendered":"Corespotlightd high CPU process on Mac"},"content":{"rendered":"


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Update:

What is corespotlightd and why does it act up?<\/strong><\/h2>\n

Let\u2019s face it: most Mac users bump into performance issues at some point, and when they do, it\u2019s often a single process gobbling up too much CPU or memory. Such reports are exploding into the wild off and on, and our team tries to keep a record<\/a> of the ones that have a significant footprint in terms of user experience. As part of this series, we couldn\u2019t possibly ignore the influx of frustration stemming from an entity named corespotlightd. The scenario feels \u201cclassic\u201d: the process periodically monopolizes the Mac\u2019s CPU and RAM resources and drives the consumption to levels that prevent the machine from coping smoothly with other tasks thrown at it.<\/p>\n

The sluggishness overlaps with a quickly discharging battery if it\u2019s a MacBook, fan noise, overheating, and in rare cases kernel panics that freeze the system to an inoperable state. What takes many users by surprise is that CPU consumption by corespotlightd, according to the Activity Monitor app, can skyrocket to hundreds of percents. While that seems to be at odds with plain logic, the explanation is fairly simple: this condition is possible when more than one cores of the processing unit are engaged simultaneously. All in all, the bug ends up becoming a brain teaser that won\u2019t sort itself on its own.<\/p>\n

\"While<\/source><\/source><\/picture>To understand the whys and wherefores, and then piece it all together, it\u2019s worth zooming in on what corespotlightd is. So, it\u2019s a background process, referred to as a daemon in the macOS ecosystem, that props the work of Spotlight, the native search feature you access with Command + Space key combo to find files, apps, or emails quickly. It\u2019s stored at \/usr\/libexec\/corespotlightd and managed by an umbrella process called launchd. The chores of corespotlightd come down to indexing everything on a Mac, including files, folders, and apps, so that Spotlight can pull up results fast. Normally, it runs quietly and doesn\u2019t use much power after the initial indexing is completed. But when it starts siphoning off too much CPU or memory and brings the system to a crawl, users notice something\u2019s wrong and look into Activity Monitor, only to discover the daemon maxing out resource usage.<\/p>\n

Special Offer<\/strong><\/p>\n

The Corespotlightd CPU and memory overuse may re-infect your Mac multiple times unless you delete all of its fragments, including hidden ones. Therefore, it is recommended to download Combo Cleaner and scan your system for these stubborn files. This way, you may reduce the cleanup time from hours to minutes.<\/strong><\/p>\n

<\/svg> Download Now<\/span><\/a> Learn how Combo Cleaner works<\/a>. If the utility spots malicious code, you will need to buy a license to get rid of it.<\/sub><\/div>\n

The reasons for this overkill can vary. It often happens after you add a lot of new files, connect an external drive with tons of data, or install a big macOS update. In either situation, corespotlightd has to index all that new content to make it searchable by Spotlight. That, clearly, takes effort. Folders syncing with cloud services like iCloud or Dropbox can keep it busy too, especially if files change frequently. A corrupted Spotlight index is another likely catalyst for the problem, because it makes the process work harder than it should. Sometimes, it\u2019s just a glitch in macOS that throws corespotlightd off track. Whatever the reason, the result is the same: your Mac slows down and Activity Monitor shows CPU usage spiking, sometimes well over 100% on multi-core systems.<\/p>\n

\"Corespotlightd<\/source><\/source><\/picture><\/p>\n

When it comes to the fixes, the first thing on any affected user\u2019s to-do list is to try and stop the process. This means quitting or force-quitting corespotlightd in Activity Monitor. While this workaround will instantly tame the CPU overuse, the catch is that the problem will almost certainly reemerge the next time you search with Spotlight or turn on your Mac. By the way, restarting the machine can also bring about a relief as it clears out any temporary issues causing high resource consumption.<\/p>\n

If that doesn\u2019t solve it, try reindexing Spotlight. To do it, go to System Settings (called System Preferences on older macOS versions), find Siri & Spotlight, and proceed to the Spotlight Privacy section. Then, add your main drive to the list to exclude it from indexing, wait for a few minutes, and remove it by clicking the \u201cminus\u201d button at the bottom of the pane. What this ostensibly tricky procedure does is it tells the search module to rebuild the index from scratch. It will take time if you have a lot of files, but once it\u2019s through, corespotlightd should settle down. If you blame the bug on a specific large folder, like one linked to Google Drive, you can exclude it permanently in the above-mentioned Privacy tab to reduce the workload.<\/p>\n

To avoid issues going forward, unplug external drives when you don\u2019t need them, delete files you don\u2019t use to keep the index smaller, and install macOS updates whenever available. Also, be sure to eliminate a potential malware piece of the puzzle. This logic makes sense because harmful code can corrupt files and interfere with the work of system components, including Spotlight. That\u2019s especially worthwhile if you periodically connect external media to the Mac and thereby introduce a lot of new files to the system, some of which can be dodgy. With that in mind, consider using the following walkthrough to check if malicious software is part of the problem.<\/p>\n

Corespotlightd high CPU virus manual removal from Mac<\/h2>\n

The steps listed below will walk you through the removal of this malicious application. Be sure to follow the instructions in the specified order.<\/p>\n

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  1. \n

    Expand the Go<\/strong> menu in your Mac\u2019s Finder bar and select Utilities<\/strong> as shown below.\"Go<\/source><\/source><\/picture><\/p>\n<\/li>\n

  2. \n

    Locate the Activity Monitor<\/strong> icon on the Utilities screen and double-click on it.\"Select<\/source><\/source><\/picture><\/p>\n<\/li>\n

  3. \n

    In the Activity Monitor app, look for corespotlightd or another process that appears suspicious. To narrow down your search, focus on unfamiliar resource-intensive entries on the list. Keep in mind that its name isn\u2019t necessarily related to the way the threat is manifesting itself, so you\u2019ll need to trust your own judgement. If you pinpoint the culprit, select it and click on the Stop<\/strong> icon in the upper left-hand corner of the screen.\"Stop<\/source><\/source><\/picture><\/p>\n<\/li>\n

  4. \n

    When a follow-up dialog pops up asking if you are sure you want to quit the troublemaking process, select the Force Quit<\/strong> option.<\/p>\n

    \"Select<\/source><\/source><\/picture><\/p>\n<\/li>\n

  5. \n

    Click on the Go<\/strong> menu icon in the Finder again and select Go to Folder<\/strong>. You can as well use the Command-Shift-G<\/strong> keyboard shortcut.<\/p>\n

    \"Use<\/source><\/source><\/picture><\/p>\n<\/li>\n

  6. \n

    Type \/Library\/LaunchAgents<\/strong> in the folder search dialog and click on the Go<\/strong> button.<\/p>\n

    \"Open<\/source><\/source><\/picture><\/p>\n<\/li>\n

  7. \n

    Examine the contents of the LaunchAgents folder for dubious-looking items. Be advised that the names of files spawned by malware may give no clear clues that they are malicious, so you should look for recently added entities that appear to deviate from the norm.<\/p>\n

    As an illustration, here are several examples of LaunchAgents related to mainstream Mac infections: com.updater.mcy.plist<\/strong>, com.avickUpd.plist<\/strong>, and com.msp.agent.plist<\/strong>. If you spot files that don\u2019t belong on the list, go ahead and drag them to the Trash.<\/p>\n

    \"Root-level<\/source><\/source><\/picture><\/p>\n<\/li>\n

  8. \n

    Use the Go to Folder<\/strong> lookup feature again to navigate to the folder named ~\/Library\/Application Support<\/strong> (note the tilde symbol prepended to the path).<\/p>\n

    \"Open<\/source><\/source><\/picture><\/p>\n<\/li>\n

  9. \n

    When the Application Support directory is opened, identify recently generated suspicious folders in it and send them to the Trash. A quick tip is to look for items whose names have nothing to do with Apple products or apps you knowingly installed. A few examples of known-malicious folder names are ProgressSite<\/strong> and IdeaShared.<\/strong>\"Application<\/source><\/source><\/picture><\/p>\n

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    1. Enter ~\/Library\/LaunchAgents<\/strong> string (don\u2019t forget to include the tilde character) in the Go to Folder<\/strong> search area.<\/li>\n<\/ol>\n

      \"Open<\/source><\/source><\/picture><\/p>\n

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      1. The system will display LaunchAgents residing in the current user\u2019s Home directory. Look for dodgy items related to rogue BDLDaemon process (see logic highlighted in subsections above) and drag the suspects to the Trash.\"Contents<\/source><\/source><\/picture><\/li>\n
      2. Type \/Library\/LaunchDaemons<\/strong> in the Go to Folder<\/strong> search field.<\/li>\n<\/ol>\n

        \"Go<\/source><\/source><\/picture><\/p>\n

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        1. In the LaunchDaemons path, try to pinpoint the files the malware is using for persistence. Several examples of such items cropped by Mac infections are com.apple.sysmond.plist<\/strong>, com.startup.plist<\/strong>, and com.ExpertModuleSearchDaemon.plist<\/strong>. Delete the sketchy files immediately.<\/li>\n<\/ol>\n

          \"LaunchDaemons<\/source><\/source><\/picture><\/p>\n

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          1. Click on the Go<\/strong> menu icon in your Mac\u2019s Finder and select Applications<\/strong> on the list.<\/li>\n<\/ol>\n

            \"Go<\/source><\/source><\/picture><\/p>\n

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            1. Find the entry for an app that clearly doesn\u2019t belong there and move it to the Trash. If this action requires your admin password for confirmation, go ahead and enter it.\"Drag<\/source><\/source><\/picture><\/li>\n
            2. Expand the Apple menu and select System Preferences<\/strong>.\"Select<\/source><\/source><\/picture>\"Open<\/source><\/source><\/picture><\/li>\n
            3. Proceed to Users & Groups<\/strong> and click on the Login Items<\/strong> tab.\"Proceed<\/source><\/source><\/picture>The system will display the list of items launched when the computer is starting up. Locate the potentially unwanted app there and click on the \u201c-\u201d (minus) button.\"Delete<\/source><\/source><\/picture><\/li>\n
            4. Now select Profiles<\/strong> under System Preferences. Look for a malicious item in the left-hand sidebar. Several examples of configuration profiles created by Mac adware include TechSignalSearch<\/strong>, MainSearchPlatform<\/strong>, AdminPrefs<\/strong>, and Safari Settings<\/strong>. Select the offending entity and click on the minus sign at the bottom to eliminate it.<\/li>\n<\/ol>\n

              \"Select<\/source><\/source><\/picture>\"Remove<\/source><\/source><\/picture>If your Mac has been infiltrated by adware, the infection will most likely continue to hold sway over your default web browser even after you remove the underlying application along with its components sprinkled around the system. Use the browser cleanup instructions below to address the remaining consequences of this attack.<\/p>\n<\/li>\n<\/ol>\n

              Get rid of corespotlightd virus in web browser on Mac<\/h2>\n

              To begin with, the web browser settings taken over by the corespotlightd virus should be restored to their default values. Although this will clear most of your customizations, web surfing history, and all temporary data stored by websites, the malicious interference should be terminated likewise. The overview of the steps for completing this procedure is as follows:<\/p>\n

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              1. Remove corespotlightd virus from Safari<\/strong>\n