Fix Guide: Spotlight Search Completely Broken on macOS Tahoe

Symptom: You press Command + Space, and nothing happens. Or, you type a search term, and Spotlight only shows results from the first letter, or shows no files at all.

Why this happens

macOS Tahoe 26.x has a known regression in the metadata indexing engine. It often "hangs" when attempting to index specific large files or cloud-backed folders (like iCloud Drive or Dropbox), causing the entire Spotlight UI (mds and Spotlight processes) to stop responding.

Recommended Troubleshooting Tool

Before proceeding with manual fixes, we recommend using CleanMyMac X. Quickly identify high CPU apps and optimize system memory with one click.

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Fix 1: Force a Metadata Reset (Free)

You can force macOS to delete its current search index and start fresh.

1. Open Terminal

• Go to Applications > Utilities > Terminal.

1. Turn Off Indexing

• Type: sudo mdutil -i off /
• Enter your Mac password when prompted.

1. Erase the Old Index

• Type: sudo mdutil -E /

1. Restart Indexing

• Type: sudo mdutil -i on /

1. Monitor Progress

• Click the Spotlight icon. You should see a "Indexing..." progress bar. Wait until it completes (can take 1-4 hours).

Fix 2: The "Privacy Tab" Trick (Free)

If Terminal commands don't work, you can use the System Settings UI to "kick" the indexer.

1. Open System Settings

• Go to Siri & Spotlight > Spotlight Privacy...

1. Add Your Drive

• Drag your "Macintosh HD" into the list.
• Wait 1 minute.

1. Remove Your Drive

• Highlight "Macintosh HD" and click the minus (-) button.
• This force-triggers a re-index of the entire drive.

Fix 3: The Professional Maintenance Path

When indexing hangs because of deep system corruption.

If your index keeps breaking even after a reset, you likely have corrupted system logs or "dead" caches that the native indexer is getting stuck on.

Recommended Tool: CleanMyMac X

- Reindex Spotlight: CleanMyMac X has a one-click "Maintenance" script specifically for Reindexing Spotlight. It handles the Terminal commands safely in the background and clears out the temporary system caches that often cause the indexer to hang.

- System Junk Removal: Clearing the system logs first ensures that Spotlight isn't trying to index billions of lines of error reports.

[Link: Fix Spotlight Search with CleanMyMac X]

Alternative: Alfred 5

If you are tired of Spotlight's native bugs, Alfred is the industry standard for Mac search. It uses its own fast indexing method and is significantly more reliable than macOS's built-in search.

[Link: Upgrade your search with Alfred]