Open the Task Scheduler window by double-clicking My Computer and then double-clicking the Scheduled Tasks folder.
Right-click the task you want to modify, and then click Properties.
To change the program you want to run, in the Run box, type the path for the task, or click Browse.
To change the schedule for the task, click the Schedule tab.
To customize the settings for the task, click the Settings tab.
Tips
If the task program requires parameters, type them in the Run box, after the task path.
If the path to the task program includes spaces, put double quotation marks (“) around the entire task path.
Make sure that the system date and time for your computer are accurate. Task Scheduler relies on this information to know when to run scheduled tasks. To check or change the date and time, double-click the time on the taskbar.