Why MacBookPro mds_stores disk write so big?

M1Pro 14 32g+1t 15.7.1.

No Swap Use.

Just Two Day.

Already Run "mdutils -E" To Re-Indexing.

Just For Use After Work Only.

[Edited by Moderator]

MacBook Pro 14″

Posted on Nov 4, 2025 3:04 AM

Top-ranking reply

Ian R. Brown

Level 7

24,102 points

Posted on Nov 5, 2025 2:30 AM

It is caused by Spotlight and the only way I found to stop it is to switch off Spotlight.

Open System settings/Spotlight and scroll to the bottom where you will find a button called "Search Privacy".

Click it and in the window that opens add all your drives.

That will immediately stop those huge writes which incidentally never appeared on the drive . . . it's as though they were instantly deleted the moment they were written.

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16 replies

steve626

Level 6

13,695 points

Nov 14, 2025 10:20 AM in response to cuukenn

2025-11-03 CleanMyMac (5.2.7) - App Store

This program is potentially a problem. Many users have reported problematic interactions with the MacOS, resulting in system level malfunctions. You have such a malfunction relating to mds. Not sure if it is related to CMM, but it turns out that CMM can be stubbornly difficult to uninstall completely, is very persistently infiltrates the user files that interact with the MacOS. In a sense, it can be as bad as a virus or malware because it can compromise proper operation of the computer. If you can, completely uninstall CMM (CleanMyMac).

Configuration profiles found - This computer may have configuration profiles installed.

Is this your personal Mac? If so, who installed Configuration Profiles and what are they for? Is this a "Managed" computer by someone else?

Why MacBookPro mds_stores disk write so big?