How to Clear Task Scheduler History in Windows Vista and Windows 7

Task Scheduler in Windows 7/Vista store the tracked events for each task, which can be viewed by opening the task properties and clicking on the History tab. The entries are stored in the Microsoft-Windows-TaskScheduler event log. To clear the events history for all tasks, use the instructions in this article.



Click Start, type Eventvwr.msc and press ENTER.
Navigate to the following branch:
Event Viewer (Local) / Applications and Services Logs / Microsoft / Windows / TaskScheduler / Operational
Right-click Operational and click Clear Log…
Click the Clear button.



This erases the task scheduler events history for all tasks.