How to fix Windows Search Indexer’s high CPU utilization
However, some users have found that the Search Indexer process can hog a lot of system resources with high CPU and RAM usage.
This is how you can reduce the Search Indexer’s high CPU utilization.
Fix searchindexer.exe high CPU usage
You can check the Search Indexer’s CPU utilization with the Task Manager. Right-click the taskbar, and select Task Manager from the menu.
Select the processes tab, and scroll to the Microsoft Windows Search Indexer, or SearchIndexer.exe, process. The CPU column highlights the CPU utilization of each program and service.
1. Restart the Windows Search Service
- Restarting the Windows Search service might reduce the Search Indexer’s CPU usage. You can do that by pressing the Win key + R hotkey and entering ‘services.msc’ in Run’s text box.
- Press Run’s OK button to open the Services window.
- Scroll down to Windows Search.
- Double-click Windows Search to open its configuration settings shown directly below.
- Select Disabled from the Startup type menu.
- Press the Stop button.
- Press the Apply and OK buttons.
- Restart the Windows OS.
- Thereafter, open the Windows Search service window again.
- Select Automatic (Delayed Start) from the Startup type drop-down menu.
- Click the Start option, and press the Apply and OK buttons to restart Windows Search.
2. Reduce the Amount of Indexed Data
Reducing the amount of data the Search Indexer is indexing is one of the best ways to cut down its CPU and RAM usage. You can configure the locations the Search Indexer indexes via the Indexing Options window.
In addition, you can adjust the file types the service indexes.
- To open Indexing Options, press the Cortana taskbar button.
- Enter ‘indexing’ in the search box. Then click Indexing Options to open the window shown directly below.
- Press the Modify button to open the Indexed Locations window.
- Click the arrow beside the C: drive to expand its folders. Now you can deselect some of the check boxes to remove indexed locations.
- Press the OK button on the Indexed Locations window.
- Click Close on the Indexing Options window.
3. Rebuild the Index
If reducing the indexed locations doesn’t greatly cut the Search Indexer’s CPU utilization, you can also select to rebuild the index. Rebuilding the index can resolve numerous Windows Search issues. You can rebuild the index as follows.
- Open Indexing Options as outlined above.
- Click the Modify button, and deselect all the selected locations except the C: drive as shown below.
- Click OK to return to the Indexing Options window.
- Press the Advanced button to open the tab shown directly below.
- Press the Rebuild button on the Index Settings tab.
- That will open the dialog box shown directly below. Press the OK button to confirm and rebuild the index.
4. Switch the Search Indexer off
This might be a more drastic resolution, but you can switch the Search Indexer off if you don’t really need it. That will certainly ensure it doesn’t hog any system resources.
- Enter the keyword ‘windows features’ in the Control Panel’s search box.
- Click Turn windows features on or off to open the window directly below.
- Deselect the Windows Search check box.
- Press the OK button to confirm the new settings.
- Reboot your desktop or laptop.
If you need a replacement for Windows Search after switching it off, there are plenty of alternative third-party search utilities.
For example, you can install the freeware Agent Ransack, Copernic Desktop Search Lite or UltraSearch. Agent Ransack is highly rated search software that has a Lite and Pro version.
Press the Download button on this website page to add the Lite version to Windows 10, 8 or 7.
This software guide provides further details about some of the third-party search utilities for Win 10.
So that’s how you can cut the Windows Search’s CPU and RAM usage down to size. That will free up system resources for other software and might also speed up the Windows OS a little.
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