Microsoft Windows Search Protocol Host stopped working

• Windows Search is an essential tool that you can use to identify any data you have on your PC.
• The article below will help you by showing what needs to be done when Windows Seach Protocol stops working.
• Even more similar guides can be found on our dedicated System Errors Hub.
• For more helpful info, visit our Windows 10 Errors page.

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Some users have reported to the Microsoft forums that they’re getting “Microsoft Windows Search Protocol Host Stopped Working” very often. This problem is probably caused by some damaged files in your system, or the service is just disabled.

But there’s no need to worry, because we offer you a solution in this article.

What to do if Microsoft Search Protocol has stopped Working

1. Check if Windows Search Service is enabled

First thing first, make sure that the Windows Search Service is enabled in your system. In case “Windows Search Service” isn’t enabled here’s what you should do to enable it:

Find Windows Search service and check if it’s enabled

2. Check Indexing Settings

If your Search service is enabled, you can try with rebuilding your search indexing settings, because you probably know that search in Windows is ‘all about indexing.’ Here’s exactly what you need to do to rebuild your indexing settings:

Click on Advanced tab

Now check if your search works again, after rebuilding the index. If you still can’t search your files normally, try some of the following system solutions.

3. Perform a Clean Boot

If “Windows Search Service” is enabled, but the problem still appears, you should try with a Clean Boot. A Clean Boot fixes a lot of problems in Windows, and it might fix ours as well. The thing with a Clean Boot is that it starts Windows with a minimal amount of drivers and software in order to determine if some software is preventing your system from running normally. Before you perform a Clean Boot, make sure that you’re logged to your computer as an administrator.

Here’s how you’ll perform a Clean Boot:

Also, you should know that performign a Clean Boot is not completely safe, because it could damage your system and your computer could become unusable. However, you might face some lack of functionality of your system after you perform a Clean Boot, but don’t worry, this is not an issue, because everything will be back to normal after you restart your PC.

4. Use System File Checker Tool to repair damaged files

Expert Tip: Some PC issues are hard to tackle, especially when it comes to corrupted repositories or missing Windows files. If you are having troubles fixing an error, your system may be partially broken. We recommend installing Restoro, a tool that will scan your machine and identify what the fault is.
Click here to download and start repairing.

Also the problem with Search Protocol Host could have occurred if the “ntdll.dll” file is corrupt. In order to repair this file, you’ll need to perform SFC (System File Checker) scan, here’s how you will do it:

At the Command Prompt, type the following command, and then press ENTER: sfc /scannow

The sfc /scannow command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir%System32dllcache.

5. Perform Disk Cleanup

After performing the SFC scan, we’re also going to quickly clean up your hard drive from any potential corrupt files. Here’s how to do that:

Select your Windows 10 hard drive, by default it should be C. Click OK.

6. Run DISM

Similarly to the SFC scan, DISM (Deployment Image Servicing and Management) is also a troubleshooting tool, but a more advanced one. So, if the SFC scan didn’t manage to get the job done, there’s a good chance DISM will.

In case you don’t know how to run DISM, just follow the instructions below:

Performing one of these four solutions should solve your problem with Windows Search service.

But, if you’re still getting the Microsoft Windows Search Protocol Host Stopped Working message, please tell us in the comment section below, because we’ll be glad to find another working solution for your problem.

But first, here are some more examples of this problem:

• searchprotocolhost.exe application error Windows 10
  • This is the error code that usually comes with the Search Protocol error in Windows 10.
• search protocol host process failed Outlook 2016
  • This error code can also be connected with Outlook 2016.
• Microsoft windows search protocol host asking for credentials
  • If your credentials are wrong, you might encounter the Search Protocol issue.
• Microsoft Windows search protocol host popup Windows 10
  • This issue usually appears in form of a popup.
• searchprotocolhost.exe application error Windows 7
  • The problem with the Search Protocol doesn’t only show up in Windows 10, but in Windows 7, too.

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