What is SearchProtocolHost.exe and why does it consume so much CPU? If you don’t know, then this post from MiniTool is what you need. This post gives you detailed information about it and you can also know how to fix SearchProtocolHost.exe high CPU in Windows 10.

What Is SearchProtocolHost.exe?

SearchProtocolHost.exe is used to run Search Protocol Host, which is an important part of the Windows Search component and helps index files on Windows computers. The SearchProtocolHost.exe file is located in the C:\Windows\System32 folder.

Tip: Want to know more things about the System32 folder? Then you can read this post - What Is System 32 Directory and Why You Shouldn’t Delete It?

SearchProtocolHost.exe is used to execute the Windows Search utility and doesn’t pose any threat to your computer.

How to Fix SearchProtocolHost.exe High CPU?

Sometimes, the SearchProtocolHost.exe file consumes so much CPU because the Indexer cannot find certain files on the system. Then how to fix the SearchProtocolHost.exe high CPU error? There are three methods you can take to get rid of the error.

Method 1: Change Indexing Options

The first method you can try to fix the SearchProtocolHost.exe high CPU error is to change Indexing Options. Your search may not be as fast as before, but it may help you get out of the situation. Here is a quick guide:

Step 1: Type indexing options in the Search bar and then click Indexing Options to open it.

Tip: Missing Search bar? Then you can read this post - Windows 10 Search Bar Missing? Here Are 6 Solutions.

Step 2: In the newly pop-out window, click Modify at the bottom to open Indexed Locations.

Step 3: Click Show all locations, then uncheck huge locations (in this case, uncheck Local Disk C:) and other file locations that may prompt the search process to spawn again and again. Click OK to save changes.

change Indexing Options

Step 4: Reboot your system to check if SearchProtocolHost.exe is still using high CPU.

Method 2: Run the SFC Tool

If your system configurations are not set correctly on your computer, then you may meet the SearchProtocolHost.exe high CPU error. But luckily, there is a powerful built-in tool that you can use to check for any integrity violations and fix them. Here is the way you need to do:

Step 1: Type cmd in the Search bar and then right-click Command Prompt to choose Run as administrator.

Step 2: In the newly pop-out window, type DISM.exe /Online /Cleanup-image /Restorehealth and then press Enter to execute it.

run the DISM command

Step 3: Wait until the process is finished. Then type sfc /scannow in the window and press Enter to execute the SFC scan.

Step 4: Restart your computer to check if the SearchProtocolHost.exe file is consuming so much CPU.

Method 3: Disable the Windows Search Service

If you find that SearchProtocolHost.exe still consumes you a large amount of CPU after you tried the two methods above, then you need to disable the Windows Search service. But you should know that you cannot use Windows Search on your computer if you adopt the method.

Here is the tutorial:

Step 1: Press the Win + R keys at the same time to open the Run box.

Step 2: Type services.msc in the box and then click OK to open Services.

Step 3: Find Windows Search in the list and then right-click it to choose Properties.

find Windows Search

Step 4: Set Startup type to Disabled and then click Stop. Click Apply and OK to save changes.

set Startup type to Disabled

Step 5: Restart your computer to check if the error is fixed.

You Can Disable Unnecessary Services in Windows 10
You Can Disable Unnecessary Services in Windows 10

To disable unnecessary services in Windows 10 is a good way to reduce the boot time of your computer. This post tells how to disable and what to safely disable.

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Bottom Line

This post offers you some information about SearchProtocolHost.exe. And if you find that SearchProtocolHost.exe consumes high CPU, then you can try the methods mentioned in this post to solve the problem.

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