Non-admin users cannot run (or even see) scheduled tasks created by users with admin rights. Task Scheduler, when no admin, gives - Error Value: 2147943785
Solution 1 Scheduled tasks are saved in C:\Windows\System32\Tasks folder as xml files (with no extension). To allow non-admin users to view and run a task, find the task(s) in question and change permissions to allow Read and execute for your chosen user or group (as you would for any other file or directory).
source - http://www.mysysadmintips.com/windows/clients/576-allow-to-view-and-run-scheduled-tasks-without-admin-rights
Solution 2 Right Click MyComputer > Manage > Local Users and Groups > Groups > Administrators double click > your name should be there, if not press add…
origin - http://www.pipiscrew.com/?p=6385 allow-to-view-and-run-scheduled-tasks-without-admin-rights