The search in Windows 10 is not known for reliability. The Start search has always been a problem for many users.
Windows 10 includes a built-in search troubleshooter to find and fix problems with the search and indexing. The troubleshooter does a fair job, and more often than not, it manages to fix issues.
Indexer Diagnostic Tool for Windows 10
Indexer Diagnostic Tool is a new utility developed by Microsoft to help Windows 10 users find and fix search issues. Users running version 1809 or higher versions can use the Indexer Diagnostic Tool.
The Indexer Diagnostic Tool is more than just a diagnostic tool. The tool displays the current status of the search index service, the total number of files indexed, indexer usage by last hour, last day, and last week.
The Search is not working tab allows you to quickly reset or restart the search service.
If a file is not showing up in search results, you can use this tool to check if the file is indexed. To do that, navigate to the “Is my file indexed?” tab, click the Browse button to select the file, and then click the Verify button. You can also add new locations to the search index by clicking on the Add button in the “What is being indexed?” tab. The tab also has an option to remove existing locations from the index.
When the search indexer is not working, you can use the tools in the Performance tab.
All-in-all, a decent tool for all Windows 10 users. Microsoft plans to add new functions to this tool in the coming months.
Between, if you have issues related to the search or indexing, we recommend you manually rebuild the search index and use the built-in Search and Indexing troubleshooter found on Settings > Update & Security > Troubleshoot page before trying out this tool.
Visit the following link to download the newest version of the Indexer Diagnostic Tool.