What is the scheduled task "\Microsoft\Windows\ApplicationData\CleanupTemporaryState" on my Windows 8 computer?

"\Microsoft\Windows\ApplicationData\CleanupTemporaryState" is a scheduled task on Windows 8 system added as part of Windows installation.

You will see "\Microsoft\Windows\ApplicationData\CleanupTemporaryState" listed on Task Scheduler with the following information:

Name: CleanupTemporaryState
Location: \Microsoft\Windows\ApplicationData
Description: Cleans up each package's unused temporary files.
Actions: %windir%\system32\rundll32.exe 
   Windows.Storage.ApplicationData.dll,CleanupTemporaryState
Triggers: 
History: 

Programe file information about "Windows.Storage.ApplicationData.dll":

File name: Windows.Storage.ApplicationData.dll
File path: C:\windows\system32\Windows.Storage.ApplicationData.dll
File size: 175616 bytes
Last modified time: 7/25/2012 11:07:50 PM
File description: Windows Application Data API Server
File version: 6.2.9200.16384 (win8_rtm.120725-1247)
Company name: Microsoft Corporation

"Windows.Storage.ApplicationData.dll" is scheduled with no triggers.

It is recommended to keep "\Microsoft\Windows\ApplicationData\CleanupTemporaryState" enabled as a scheduled task.

⇒System Scheduled Tasks on Windows 8

⇒⇒Windows 8 Scheduled Tasks