Loader.exe

The most common legitimate version is . This is a core component of Power Query used in Microsoft Excel and Power BI.

It manages the background loading and evaluation of data queries from external sources. loader.exe

Users often report high CPU, RAM, or disk usage when this process runs, even if no query appears to be actively refreshing in the foreground. 2. Malicious and Unwanted Software The most common legitimate version is

Typically found in subfolders under C:\Program Files\Microsoft Office\ or C:\Program Files\Microsoft Power BI Desktop\ . loader.exe