What’s AggregatorHost.exe (Microsoft (R) Aggregator Host)? Is it safe or a virus?

I've spent quite a bit of time trying to learn as much as possible about the Microsoft Aggregator Host process (AggregatorHost.exe). While searching online (and checking PCs in our labs), it appears it started showing up on Windows PCs in 2021.

I also found that MIcrosoft has a Windows App Development glossary where Microsoft writes "Aggregation is available as a convenience to avoid extra implementation overhead." Then, in English, we know that aggregation usually refers to the process of collecting and combining multiple pieces of data.

I then checked our PCs here at SpyShelter labs, and I found that they all had the AggregatorHost.exe actively running. Therefore, this seems to be a common and active part of the Windows OS.

If I was going to make a bet, I'd bet this executable collects different data from different parts of the Windows OS, then aggregates the data for different parts of Windows, like Windows Update, and Windows Security.

AggregatorHost.exe is a legitimate signed .exe that's made by Microsoft for the Windows OS, and is not malware.

Therefore, as long as you confirm this process is signed, you should be completely safe running AggregatorHost.exe. To check if the .exe is signed, use Windows Properties, or our free SpyShelter Antispyware app.

Researched by Jon @ SpyShelter Labs