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1. #RUNDLL32 EXE ADVAPI32 DLL PROCESSIDLETASK FULL#
2. #RUNDLL32 EXE ADVAPI32 DLL PROCESSIDLETASK WINDOWS#

The only thing that runs in the system idle process are the per-CPU idle threads. These "idle tasks" do not run in the system idle process. Such routines don't necessarily have anything to do with "optimization".

There can be many routines registered for idle detection. there is not one single "optimization routine". Rundll32.exe advapi32.dll,ProcessIdleTasks simply forces all of these queued tasks to run NOW, whether the system is idle or not. So in the system there is a list of all of these tasks (routines within processes) that are hanging around waiting for the system to be idle, so they can do their thing without bothering you, the user.Īs mentioned in the MSDN article, file placement optimization is one such task.Īnother such task is the context indexer. The routine in the process is invoked, incidently, via a Remote Procedure Call. Usually only services (background processes) register an idle detection routine because only services are doing the sorts of things that would want to run at such times, but any process could use the facility. This is driven by the same "idle detector" that triggers things like screen savers, though it has a longer threshold for the idle tasks. Choice 2 is completely wrong.Īny running program (process) can register a routine to be called when the system is "idle".

#RUNDLL32 EXE ADVAPI32 DLL PROCESSIDLETASK WINDOWS#

Oh well it is ture - I remember it seeing running for a bit more (10-20 seconds), but in all the attempts, this occured only once on previous Windows installation !!Ĭhoice 3 is a good answer, but loses points for quoting MS's article without credit. Yes, and also - it says in all these articles that it should "take about 10-15 minutes to complete", but in my case the process always exists instanly. P.S., See many articles listed here: GoogleSearch:,ProcessIdleTasks There are also some done-once-after-setup work items that also operate under the Idle Task Scheduling mechanisms. System Restore and other features of Windows XP also attempt to defer some work until the system is deemed to be idle. The file placement optimization, which is done no more often than once every three days, is an example of a task that is carried out when the system is deemed to be idle.

#RUNDLL32 EXE ADVAPI32 DLL PROCESSIDLETASK FULL#

This frees up any idle tasks running in the background so that XP devotes its full attention to what you want it to do. In the Run box, type, "Rundll32.exe advapi32.dll,ProcessIdleTasks". This will start a built in optimization routine that runs in the System Idle Process and shows up as "rundll32.exe" in task manager. and type or paste "Rundll32.exe advapi32.dll,ProcessIdleTasks". And regarding the various explanations, I am a bit cofused about one thing - what is the actual purpose of this command ?Ī built in file-placement optimization routineįreeing up idle tasks running in the background Uhhhh, this is really an out-dated reply, so sorry all.īut I was just reviewing the whole principle of this "rundll32.exe advapi32.dll,ProcessIdleTasks" API and its relation to MS's Bootvis.exe program.