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What’s SearchIndexer.exe (Microsoft Windows Search Indexer)? Is it safe or a virus?

You may have noticed lately in Windows that the Taskbar search box gets results almost instantly! The Windows process that's responsible for that speed is SearchIndexer.exe, also known as Microsoft Windows Search Indexer.

At our SpyShelter labs here in Austin, Texas, we found that all our PCs had this important executable. It appears to not only be safe, but it's important to leave it running if you want to quickly find apps or files on your PC.

The SearchIndexer.exe process continuously updates the PC search index to include new files and changes to existing files, ensuring that the search feature remains super duper quick!

(Researched by Jon @ SpyShelter Labs)

Executable Processes List

More about SearchIndexer.exe on WINDOWS

Who makes SearchIndexer.exe (Microsoft Windows Search Indexer)?

We’ve found Microsoft Windows should be the publisher of SearchIndexer.exe.

How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.

What does it mean if someone is the publisher of a PC .exe (executable or process)?

The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.

Is SearchIndexer.exe safe or a virus?

Below are 4 simple steps you can take to see if the SearchIndexer.exe process is safe or malware.

  1. Scan the executable with Microsoft's built-in tech
  2. Find SearchIndexer.exe's publisher
  3. Search the executable's hash with VirusTotal
  4. Monitor the executable's behavior
Last updated: February 3, 2024

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Why should you trust us?

Our team at SpyShelter has been studying Windows PC executables for over 15 years, to help fight against spyware, malware, and other threats. SpyShelter has been featured in publications like The Register, PC Magazine, and many others. Now we’re working to share free, actionable, and easy to understand information about Windows executables (processes) with the world, to help as many people as possible keep their devices safe. Learn more about us on our "About SpyShelter” page.

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