What is the scheduled task "\Microsoft\Windows Live\SOXE\Extractor Definitions Update Task" on my Windows 8 computer?

"\Microsoft\Windows Live\SOXE\Extractor Definitions Update Task" is a scheduled task on Windows 8 system added as part of Windows installation.

You will see "\Microsoft\Windows Live\SOXE\Extractor Definitions Update Task" listed on Task Scheduler with the following information:

Name: Extractor Definitions Update Task
Location: \Microsoft\Windows Live\SOXE
Description: Updates the definition file for the Windows Live Social Object Extractor Engine
Actions: Custom handler
Triggers: At logon of any user
History: 
   Information 8:01:00 Task completed
   Information 8:00:48 Action completed
   Information 8:00:48 Action started
   Information 8:00:48 Task started
   Information 8:00:48 Task triggered on logon
   ...

"Extractor Definitions Update Task" is scheduled to run at logon time.

It is recommended to keep "\Microsoft\Windows Live\SOXE\Extractor Definitions Update Task" enabled as a scheduled task.

⇒System Scheduled Tasks on Windows 8

⇒⇒Windows 8 Scheduled Tasks