How To Fix Windows Search Indexer High CPU Usage [Solution]

The Windows search indexer service helps you make quicker searches for content like emails or files on a computer. It is a resource-intensive service that runs in the background.
If you are bothered about the Windows search indexer’s high CPU usage issue, you should explore the solutions in this tutorial.

Why is Microsoft Windows Search Indexer causing high CPU usage?
If you run into this situation, any of the following can be triggers: A corrupt or damaged index, Index corruption may be linked to power outages and other interruptions while the index is built. Extra large index, If your hard drive has many files, it may lead to a huge index, triggering more CPU usage.

Run System File Checker/DISM:
1. Press Windows + R to open the Run dialog.
2. Type cmd and hit Ctrl + Shift + Enter to open an elevated Command Prompt.
3. Input the script below and hit Enter to run the SFC scan. Be careful to follow any prompts on the screen while the scan executes. sfc /scannow.
4. Lastly, input the scripts below and hit Enter after each to run the DISM tool. DISM /Online /Cleanup-Image /RestoreHealth.

Reduce indexing locations:
1. Click Windows search, type indexing, and select Indexing Options.
2. Click the Modify button.
3. Expand the drive with your Windows installation and deselect indexing locations.
4. Press OK, and verify it fixes the Windows search indexer high CPU usage problem.

Rebuild the index:
1. Click Windows search, type indexing, and select Indexing Options.
2. Click the Modify button.
3. Deselect all checkboxes except for the drive with your Windows installation, then click OK.
4. Click the Advanced button.
5. Press Rebuild and confirm your choice.
6. Confirm that the process fixes the Windows search indexer high CPU usage problem when it completes.

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