Microsoft Windows Search Filter Host

SearchFilterHost.exe. What is it?

SearchFilterHost.exe is Microsoft Windows Search Filter Host.

This file is part of Windows® Search. SearchFilterHost.exe is developed by Microsoft Corporation. It’s a system and hidden file. The SearchFilterHost.exe file is used by Windows search and indexing services. SearchFilterHost.exe is usually located in the %WINDOWS% sub-folder and its usual size is 70,656 bytes.

How to Fix SearchFilterHost.exe High CPU Usage

SearchFilterHost.exe is known to consume excessive CPU and cause up to 100% overall CPU usage on computers running Windows Vista. This problem can be fixed in two ways: a) disable the indexing of .xml files; b) disable indexing altogether if you don’t use Windows Search.

 To disable the indexing of .xml files: 

  1. Click on Start and go to the Control Panel
  2. Open Indexing Options and go to the Modify tab
  3. Exclude .xml files and click OK 

To disable indexing: 

  1. Click on Start and type services.msc in the Search bar. Hit Enter
  2. Locate the Windows Search service, right-click on it and go to Properties
  3. Select Disabled in the Startup type dropdown box
  4. Click Apply, then click OK and reboot your computer



The SearchFilterHost.exe process is safe and disabling it can be dangerous because programs on your computer need it to work correctly.


Author: Microsoft CorporationPart Of: Microsoft® Windows® Operating SystemCommon path(s): subfolder %WINDOWS%
subfolder %WINDOWS%


Malware risk: Scan your PC for viruses and Trojans
Some viruses infect computers while disguised in the form of legitimate files, like SearchFilterHost.exe. Run an antivirus scan to ensure your PC is clean and safe.
Registry Errors: Free scan (run Registry Cleaner)Uninstallation: N/A Uninstall (run Unistall Manager)Disk & Memory Usage: N/A Free scan (run Task Manager)

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