[FIXED] Mds_Stores High CPU Usage on Mac

Mds_stores Mac is an error that defines high CPU storage on an Apple computer. If you are bothered by this error and wonder how to fix it, keep reading this article. We list down very practical solutions to address this error conveniently, even if you are a novice. So, let’s dig deep and learn how to fix Mac mds_stores error.

An introduction to Mac mds_stores error

It goes without saying that Spotlight is considered to be an exceptionally handy feature. Basically, it is considered to be a useful search engine integrated into the desktop. This feature was initially introduced in 2004, and the release took place back in 2005. The purpose of Spotlight is to find the files that are stored on your Mac.

introduction to Mac mds_stores error
Spotlight Search

This specific feature ensures all the items as well as the files found on the mac. That, in fact, happens on a selection basis. Then, it will retain that index to perform a search easier. It is easier to activate the spotlight feature simply by clicking on it. This feature appears in the form of a magnifying glass, and it is in the menu bar of the main interface. If note, there is another method to activate this feature. In this case, you can press the command and spacebar on the keyboard when you’re on the main interface.

What does mds_stores Mac mean?

Spotlight begins the indexing process when a user first logs in to their Mac OS. After wiping the respective SSD, you either bought a new Mac or have a fresh option of Mac OS. The spotlight will begin indexing immediately once you log in. The metadata server keeps track of the indexing of files. The metadata server is abbreviated as “MDS.” It’s a procedure that runs in the background on the Mac. As a result, it can index pretty much everything on all the files on the SSD. Moreover, it can connect any other external drives you’ve connected to the respective computer.

mds_stores Mac

PS: let’s figure out how to Delete Spotlight Search History on Your iPhone and how to fix the Mac running slow issue with ease.

What makes mds_stores Mac consume heavy system resources

MDS stores usually finish indexing quickly. It consumes some CPU resources during the indexing phase. Once the initial indexing is complete, however, it uses only a little CPU power. Unless your Mac has had a lot of data removed and added to it. This method is used to index files. Nevertheless, the time it takes will differ based on the amount of data the computer already has. It continues to index the files and consumes a significant amount of CPU power. In other words, that could lead to mds_stores high CPU usage.

Due to a Spotlight issue in a few rare instances, MDS stores keep the indexing process running for weeks. This has been reported by a large number of Mac users. Now that you have a basic understanding of Spotlight, its indexing mechanism, and why it uses so much CPU. Finally, we’ll go through all of the potential solutions for resolving this vexing problem.

Besides, if you are experiencing the issues like Desktop Window Manager High CPU Error or the Mac Keeps Crashing issue, here are the top solutions for you.

What are the best fixes to try if you notice mds_stores high CPU usage?

Now that you have substantial knowledge about mds_stores Mac. Let’s proceed with the fixes. Mentioned below are the most practical fixes you can try. So, let’s go ahead and learn how to solve Mac mds_stores error.

01. Perform a restart on the Mac

You may try a few different approaches to fix MDS stores using a lot of CPU resources. The majority of them have anything to do with Spotlight. But our first piece of advice to anybody having problems with their gadgets is to just restart them. In most instances, restarting the computer resolves problems caused by minor defects. In this instance, too, I recommend restarting your Mac before diving into more complicated remedies.

● How to restart your Mac

You should first click the tiny Apple logo that is found in the upper left corner. You’ll find Sleep, Restart, and Shut Down choices here.

Restart mac to fix mds_stores Mac

If you click on the option called “Restart,” you can see that it terminates open applications. It also terminates the background applications as well. That allows you to switch on and off as you wish.

Restart Mac

Once it is restarted, you can enter the password. Then, you should begin using your Mac.

After about a half-hour of use, go over to Activity Monitor. After that, you should see whether any MDS-related processes are still utilizing the CPU. If not, just rebooting your Mac will solve the problem. However, if the problem persists, don’t worry; the next patch is on its way.

02. Stop Spotlight and start it again

As you already know, mds_stores Mac is directly related to your Mac’s spotlight feature. So, you are supposed to restart that spotlight feature and see if it does any good. With many users, this method has worked perfectly. Also, this is a very simple process that can be performed easily by a novice. So, let’s go ahead and learn how to do it.

  • First, you should go to the “Finder” app and then go to the option called “Applications.”
Stop Spotlight and restart to fix mds_stores error on Mac
  • When you are in “Application,” you should open Utilities and look for the option called “Terminal.”
  • Now, you should launch “Terminal” and enter the command mentioned below.
sudo launchctl unload -w/System/Library/LaunchDaemons/com.apple.metadata.mds.plist

Once you have done that, you should hit the “Enter” key to execute the command.

Once you have done that, you will be required to enter your password on the PC. You will need to do it because the system wants you to check if you have administrator privileges. So, just enter the password and proceed.

As a result, Spotlight will be stopped. Once you have done that, with all the other processes, the system will close everything that relates to this. You can use the computer for some time now and open Activity Monitor. That will display the processes that consume the CPU resources. Once the Spotlight is closed, mds_stores Mac will not be there. Now, you can restart the Spotlight feature and see if the error is gone.

If you don’t know how to restart Spotlight, you can follow the steps that are mentioned below.

  • First, you should open the option called “Finder” and go to “Applications” as well. After that, you should go to “Utilities” and then choose the option called “Terminal.”
  • Now, open the terminal feature on your mac and enter the following command.
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist

After that, you are supposed to hit the “Enter” key.

  • Just like the previous option, you can stop the Spotlight feature after entering the “Admin” password. You can enter that password and allow the command to run. That will activate the Spotlight feature on the mac.
  • Once you have done that, you can perform a restart on the MAC and continue using it. You can take a look at the activity monitor now. Then, check if the Mac mds_stores are using extensive resources.

03. Get rid of the directions related to the Spotlight Index

If you still see mds_stores high CPU usage, the reason could be uncompleted indexing. Such scenarios can happen if there is a huge amount of data to be indexed. So, in such a situation, you can delete some of the directories that are located in the spotlight index. By doing that, you can reduce the size of the index size. Then, mds_stores Mac might complete the respective indexing process pretty faster.

If you are not aware of how to delete those directories, you can follow the steps mentioned below.

First, you are supposed to launch “System Preferences.” To do that, you can click on the “Apple Menu.” Then, you are supposed to select it from the Launchpad.

  • You should click on the option called Spotlight. Now, you will see a screen that has Search Results & Privacy as two options.
  • Go to “Search Results,” and you can define the categories you intend to view. That means the options that should appear in search results. Also, under “Privacy,” you can add folders you don’t want to index with Spotlight.
Spotlight Privacy
  • Now, you can add folders that are big in size so they won’t appear in search results. That will reduce the time the Spotlight takes to search for your files. That will eventually fix the mds_stores Mac error. In other words, you will not see mds_stores high CPU usage after this step.

Hopefully, this method should work. If not, you shouldn’t worry, and you can proceed to the next method to fix the error.

04. Deactivate Spotlight feature

Do you still notice mds_stores high CPU usage after attempting all of the previous methods? If that is the case, this could be the last resort. In fact, in this case, the absolute last option is to turn off Spotlight. The highlight function will be disabled, which will undoubtedly resolve the problem. However, I oppose it since Spotlight has become such a useful tool. However, to turn it off, take these steps:

  • Launch Finder.
Deactivate Spotlight feature to fix mds_stores error on Mac
  • Open Terminal by going to Applications, then Utilities.
  • Type “Sudo mdutli – a -i off” into the Terminal program.
  • If you’re prompted for an Admin password, type it in and then press Enter.
  • Now you are supposed to restart your computer, and Spotlight will be gone from your Mac.


It is true that Spotlight is a fantastic tool for searching files throughout the whole system. However, the truth is that the indexing process may be tedious for certain users. The Mac mds_stores operate from the background and use the majority of CPU resources. If the system has a fan, it will begin to operate to reduce the heat on the system. It is always possible to attempt all of the procedures listed above to resolve the problem.

To fix Mac mds_stores issue, you can begin with a basic restart, followed by stopping and restarting Spotlight. Then, you can try deleting certain folders out from the Spotlight index and then deactivating Spotlight completely. Please let us know whether you were able to resolve the problem utilizing the methods that were explained above. If you are yet to succeed with any of the above solutions, please let us know. We will try our best to assist you. Good luck!