What is the scheduled task "\Microsoft\Windows\Application Experience\StartupAppTask" on my Windows 8 computer?

"\Microsoft\Windows\Application Experience\StartupAppTask" is a scheduled task on Windows 8 system added as part of Windows installation.

You will see "\Microsoft\Windows\Application Experience\StartupAppTask" listed on Task Scheduler with the following information:

Name: StartupAppTask
Location: \Microsoft\Windows\Application Experience
Description: Scans startup entries and raises notification to the 
   user if there are too many startup entries.
Actions: %windir%\system32\rundll32.exe Startupscan.dll,SusRunTask
Triggers: 
History: 

Programe file information about "Startupscan.dll":

File name: Startupscan.dll
File path: C:\windows\system32\Startupscan.dll
File size: 17408 bytes
Last modified time: 7/25/2012 11:07:23 PM
File description: Startup scan task DLL
File version: 6.2.9200.16384 (win8_rtm.120725-1247)
Company name: Microsoft Corporation

"Startupscan.dll" is scheduled with no triggers.

It is recommented to keep "\Microsoft\Windows\Application Experience\StartupAppTask" enabled as a scheduled task.

⇒System Scheduled Tasks on Windows 8

⇒⇒Windows 8 Scheduled Tasks