https://livehelpbook.com/backgroundtaskhost-exe-system-error/ 6 Simple ways for BackgroundTaskHost.exe System Error in Windows TaskHost.exe, also known as Task Scheduler Engine, is a legitimate Windows process that operates in the background. It is responsible for managing scheduled tasks, background processes, and various system services. The primary role of TaskHost.exe is to ensure that tasks are executed at their designated times and handle their dependencies.