SearchIndexer exe is an executable file and is a Microsoft Windows Search Index Builder and was introduced in Windows XP, 7, 8 and can also be found as good in recent versions of Windows 10 and 11.
Microsoft Windows Search Indexer was originally known as Windows Desktop Search (WDS) and plays an important role in indexing files for Windows search, i.e. it searches in the background for the location of various files and feeds them into Windows File Explorer or Start Menu.
Why does searchindexer.exe have a high CPU load?
This error usually occurs if you have recently re-created the search index or if you have mistakenly deleted the folder with the index data. Also, sometimes this problem is caused by corrupted system files, a virus, or a malware infection.