There are times when the Windows Search doesn’t work and you wouldn’t have a clue as to why it happened since it does not give any error codes. In such cases, you have to check the error logs in the Event Viewer to find out more about the problem. From there, look for an error with the Event ID 3104 in the Windows error logs and if you see an error message that says, “Enumerating user sessions to generate filter pools failed”, read on as this post will guide you in fixing the problem. Apart from the error message, you might also see more information in the details section of the log that says, “(HRESULT: 0x80040210) (0x80040210)”.
This kind of error is most likely caused by something that prohibits the search function from initializing. A lot of users assumed that it could be due to Cortana but it’s actually not. While some users also reported that they encounter the issue after they restarted their computers. This error was also reported with the same event ID 3104 on the Windows Server. According to security researchers, this error could be caused by problems in the Registry entry of Windows search. It could also be due to an issue with the SYSTEM account where it hasn’t been added to the DCOM Security. It is also possible that the Windows Search function has not been initialized.
To fix this error, you can try to rebuild the Search Index manually or run the Search and Indexing troubleshooter. You can also check the startup type of the Windows Search service or try some registry tweak.
Option 1 – Try to rebuild the Search Index manually
The first thing you can do to fix the problem is to manually rebuild the Search Index. You can do that by going to Control Panel > Indexing Options and from there, click on Advanced. After that, go to the Index Settings tab and then click on Rebuild > OK. Once you’re done, check if it fixed the problem.
Option 2 – Try running the Search and Indexing troubleshooter
You could also run the Search and Indexing troubleshooter in Windows 10 as it checks whether the settings are in place and automatically corrects any issues with the Windows 10 search function. To run this troubleshooter, just click on the Start button and select Settings > Updates and Security > Troubleshoot. From there, select the Search and Indexing Troubleshooter. Once the troubleshooter is done, restart your computer and see if it fixed the error.
Option 3 – Try checking the startup type of the Windows Search Service
In this option, you have to check the startup type of the Windows Search service since the service won’t start. To do so, refer to these steps:
- Tap the Win + R keys to open the Run utility and type “services.msc” in the field and then tap Enter to open the Services Manager.
- Next, from the list of services, look for the Windows Search Service or WSearch. Once you find it, right-click on it and select Properties.
- After that, change the Startup type to Automatic and click on the Start button if the service is in the Stop state.
- Now click on the Apply and OK buttons to save the changes made and then restart your computer.
Option 4 – Try changing the Registry entry for Windows Search
Before you apply some registry tweak, you need to create a System Restore point first. Once you have that covered, follow these steps:
- Tap the Win + R keys to open the Run utility and type “Regedit” in the field and tap Enter to open the Registry Editor.
- If a User Account Control prompt appears, just click Yes to proceed.
- After opening the Registry Editor, navigate to this registry path: HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows Search
- From there, click on Windows Search and look for the key named “SetupCompletedSuccessfully” and change its value to “0”. Just right-click on it and select Modify.
- Then input “0” as its value data and click on OK to save the changes made.
- Exit the Registry Editor and restart your computer.
- Now check if the Enumerating user sessions to generate filter pools failed is fixed or not.