Note: This method doesn’t work on Windows 10 / Server 2016 and higher.

Issue

Non-admin users cannot run (or even see) scheduled tasks created by users with admin rights.

Resolution

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).

01.2015
Windows 8.1